Some physical properties of water are listed below: (i) Pure water is colorless, odorless and tasteless liquid (ii) Pure water freezes atomic 0°C and boils atomic 100°C under 1 atm pressure. (iii) Water is a non-conductor of electricity and heat Properties of Fluids - Physical characteristics of water | Density - Specific enthalpy - Viscosity - Specific hea Thermal properties of water - density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more. Thermodynamic properties of water: Ionization constant, pKw (at 25°C): 13.995. pH (at 25°C): 6.9976
Physical properties of water Water is a colourless and tasteless liquid. The molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form. This also leads to high melting and boiling points Fig. 3.6: Five Critical Properties of Water 1. Ice and liquid water structure Temperature ≤ 0°C Temperature > 0°C < 100°C •Ice is less dense than liquid water •Water is liquid at a relatively high temperature > 0°C (Methane (CH 4) is similar in size but liquid only below -161°C) Hydrogen bond Liquid water Water Properties - 14.7 psia (1 atm) Water Properties - 1000 psia (68.1 atm) Water Properties - 10000 psia (681 atm The physical properties of water are of intrinsic interest, but some of these properties influence water quality as will be seen in other chapters. Keywords Water molecule Atmospheric pressure Physical characteristics Albedo of water Thermal stratification This is a preview of subscription content, log in to check access. References. Cogley JG (1979) The albedo of water as a function of. PHYSICAL PROPERTIES:Water has several other unique physical properties. These properties are:1. Water has a high specific heat. Specific heat is the amount of energy required tochange the temperature of a substance. Because water has a high specific heat, itcan absorb large amounts of heat energy before it begins to get hot.2. Water in a pure state has a neutral pH. As a result, pure water.
These properties are: Water has a high specific heat. Specific heat is the amount of energy required to change the temperature of a... Water in a pure state has a neutral pH . As a result, pure water is neither acidic nor basic . Water changes its pH... Water conducts heat more easily than any. The following thermodynamic properties are calculated: density water, dynamic viscosity water, kinematic viscosity water, specific inner energy water, specific enthalpy water, specific entropy water, specific isobar heat capacity cp water, specific isochor heat capacity cv water, thermic conductivity water, speed of sound water What are the Main Properties of Water? 1. Water's Attraction to Other Polar Molecules Cohesion Cohesion, otherwise known as water's attraction to other water... 2. Water's High-Specific Heat Water can moderate temperature because of the two properties: high-specific heat and the... 3. Water's High. Clouds in Earth's atmosphere condense from gaseous water vapor. Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth 's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent)
B.A., Physics and Mathematics, Hastings College; Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. our editorial process. Facebook Facebook; Twitter Twitter; Anne Marie Helmenstine, Ph.D. Updated May 04, 2019 Water is the most abundant molecule on the Earth's. 1862 Appendix C Physical Properties of Water Table C-2 Physical properties of water (U.S. customary units) Speciﬁc Dynamic Kinematic Surface Modulus of Vapor Temperature Weight Density aViscosity Viscosity Tensionb Elasticity Pressure T γρ μ ν σEpv ( F) (lb/ft 3) (slug/ft3)(×10−5 lb·s/ft2)(×10−5 ft2/s) (lb/ft) (10 lbf/in. 2)(lb f/in. PHYSICAL PROPERTIES OF WATER AT 1 ATMOSPHERE These tables present the values of five physical proper-ties of fresh water at various temperatures using units familiar to engineers. In Table A.1, Fahrenheit tempera-tures are displayed in whole numbers, and properties given in English units are shown unitalicized. Interna- tional System of Units (SI) quantities are given in italics. In Table A.2. This is due to cohesion of water molecules. Due to this property, small organism float or walk on water surface. 3. Water has high specific heat and high heat of Vaporization: Both of these properties are due to requirement of more energy to break hydrogen bonds. Specific heat means the amount of heat absorbed or lost by 1 gm. of substance to change its temperature by 1°C. The specific heat.
The physical properties and water absorption kinetics of three varieties of Mucuna beans (Mucuna pruriens, Mucuna rajada and Mucuna veracruz) were determined in this study. Physical properties. Properties of Water and Steam in SI-Units, 2nd Revised and Updated Printing, Springer 1979. William T. Parry et al., ASME International Steam Tables for Industrial Use, American Society of Mechanical Engineers 2000. W. Wagner, A. Kruse, Properties of Water and Steam, Springer-Verlag, Berlin 1998 The Physical Properties of Water - YouTube. The Physical Properties of Water. Watch later. Share. Copy link. Info. Shopping. Tap to unmute. If playback doesn't begin shortly, try restarting your. Polarity of Water <ul><li>In a water molecule two hydrogen atoms form single polar covalent bonds with an oxygen atom Physical Properties of Water. Water has some very important uses in our world. It is the universal liquid and will find a use in 99% of life's functions. This unique ability of water to be so versatile and ubiquitous is due to some of its very impressive properties. These properties of water are often overlooked, but are the main reason for what makes water such a valuable compound, Chemical.
Low vapor pressure is an important physical property of water, since lakes, oceans, and other large bodies of water would all tend to evaporate much more quickly otherwise. Vapor pressure is influenced by temperature. As the temperature increases, more molecules are released from the surface of the liquid. This increases movement above the liquid surface, increasing the pressure in the vapor. .9975 0.9943 0.9912 0.3532 0.3537 0.3570 2.084 2.084 2.08
The Structure and Properties of Water The Properties of Water. Water is the most abundant compound on Earth's surface. In nature, water exists in the liquid,... The Phases of Water. Similar to many other substances, water can take numerous forms. Solid Phase (Ice). The solid phase of water is. Physical Properties of Water 1.Colour. The colour is one of the important physical properties of water. The colour of the water is due to organic matter, leaves, peat etc.. The measurement of the colour of water can be done with the burgess scale or cobalt scale using a tintometer. The colour intensity of water is measured in terms of cobalt scale. The unit of colour is that produced by one. Physical Characteristics of Water 1. Turbidity of Water The turbidity is measured by a turbidity rod or by a turbidity meter with optical observations and is expressed as the amount of suspended matter in mg/l or parts per million (ppm). For water, ppm and mg/l are approximately equal. The standard unit is that which is produced by one milligram of finely divided silica (fuller's earth) in. . Nature:. Pure water is a colorless, tasteless and odorless liquid. Distilled water is pure. Drinking water has a... 2. States:. Pure water exists in all the three states as solid (ice), liquid (water) and gaseous (steam or water vapor). 3. Freezing point of. Physical Properties of Saline Water. Our group has measured, correlated, or modeled the thermophysical properties of seawater, ground water, and a range of produced waters. Our work has resulted in an open-source code for calculating seawater properties (available at:.
Properties of Water Presentation 1. Properties of Water Learning Goals • You will be able to describe the structure of water. • You will be able to identify the properties of water. • You will be able to describe how these properties of water are essential for sustaining life on Earth. 2 Water is made of two hydrogen atoms and one oxygen atom bonded together. Julia is describing how water undergoes a physical change when it boils. She says that the particles shift to be farther apart and that the oxygen and hydrogen separate. She also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. She finishes her. As a ﬁ rst approximation, most physical properties of seawater are similar to those of pure water, which can be described by functions of temperature and pressure. However, because seawater is a mixture of pure water and sea salts, salinity (which is the mass of dissolved salts per unit mass of seawater) should be known as a third independent property in addition to temperature and pressure. The physical and chemical properties of seawater vary according to latitude, depth, nearness to land, and input of fresh water. Approximately 3.5 percent of seawater is composed of dissolved compounds, while the other 96.5 percent is pure water.The chemical composition of seawater reflects such processes as erosion of rock and sediments, volcanic activity, gas exchange with the atmosphere, the. Reading about all the cool properties of water is one thing, but it's even better to see it for yourself! In this experiment, we're going to be carrying out four different activities, one for each.
. The chemical formula of a molecule of water is H2O: two atoms hydrogen (H2) linked to one atom oxygen (O). The atom electrons (particles with a negative charge) establish links between themselves. Oxygen is more able to keep them close to it than hydrogen. The water molecule results to be charged negatively near the atom of oxygen and positively near the atom of. Equations describing the physical properties of moist air 1 This is a formal presentation of the formulæ that describe those properties of water vapour in air that concern conservators. The derivation of these equations is explained concisely and the useful equations are emphasised by bold type. This datasheet is intended for reference, not as a friendly introduction to the topic! Water.
The properties of water have been tabulated below in metric SI units, for temperatures between 0°c and 100°c at atmospheric pressure of 101.325 kPa. often referred to as the properties of saturated water, saturated liquid or the thermophysical properties. The table lists the density, dynamic viscosity, kinematic viscosity, specific heat capacity, thermal conductivity and Prandtl [ What are the physical properties of ammonia? Ammonia is a covalent compound with the following physical properties: Ammonia is very soluble in water, but it ionises partially in water to form a weak alkali.A 0.1 mol dm-3 ammonia solution has a pH of about 10.; Ammonia being alkaline can undergo neutralisation with acids to form ammonium salts
The physical and chemical properties of water under hydrothermal conditions have been summarized by Franck (1978). The PVT data and other physical properties for water up to 1000°C and 10kbar are accurately known and show some remarkable behavior. For example, the viscosity of water decreases by 10% when raised to 500°C and 100bar, resulting in significantly higher molecular mobility than at. Physical Properties of Glycerine T HE extremely wide range of uses for glycerine is due in large mea- sure not to a single property, but to its unique combination of properties. Nature made glycerol the most widely distributed of the polyhydric alcohols, as combined in fats and other lipids essential to life pro- cesses. Derivatives dependent on its chemical structure have now been extended to. Water properties ppt. 1. SC.912.L.18.12 Discuss the special properties of water that contribute to Earth's suitability as an environment for life: cohesive behavior, ability to moderate temperature, expansion upon freezing, and versatility as a solvent. 2. It is a very stable. Polar molecule: It has a + and - end Water can evaporate from a salty water solution by leaving the salts behind. Ask the students if there are any other bodies of water besides the oceans that are made up of salts. The Great Salt Lake in Utah and the Caspian Sea in Russia both are salty. Discuss with students the different properties of pure water and salt water. Salt water is denser, conducts electricity because of its ionic.
Water molecules are polar, so they form hydrogen bonds, resulting in unique properties. Estimated5 minsto complete. %. Progress. Practice Structure and Properties of Water. MEMORY METER. This indicates how strong in your memory this concept is. Practice. Preview Physical Property Methods and Models 11.1 About This Manual • vii About This Manual Physical Property Methods and Models provides an overview of Aspen Plus physical property methods and detailed technical reference information on property option sets, property calculation methods and routes, property models, and parameter estimation The physical environment of a water body - waves on its surface, the character of its bottom, the incident radiance from the sky - enters the theory via the boundary conditions necessary for solution of the equations arising from the theory. The goal of this chapter is to survey the bulk optical properties of natural waters. Our discussion of these properties is tailored to meet the needs. The physical properties of water are its characteristics that can be perceived by the senses. The things that you can see, touch, taste or smell about water represent its physical properties. The most basic physical properties of water include temperature, taste, odor and color. Advertisement Temperature. The temperature of water is a physical property. The temperature of water impacts many.
Other physical properties, such as the melting temperature of iron or the freezing temperature of water, can only be observed as matter undergoes a physical change. A physical change is a change in the state or properties of matter without any accompanying change in its chemical composition (the identities of the substances contained in the matter). We observe a physical change when wax melts. Water is everywhere, from huge oceans to invisible water molecules making up water vapor in the air. Of course you can see and feel the physical properties of water, but there are also many chemical, electrical, and atomic-scale properties of water that affect all life and substances on Earth. Use this list to investigate the properties of water Solubility /w Water. Density. Molar mass. Acetone. 56 °C. Miscible. 0.786 g/ml. 58.08 g/mol. Note about Density: If the density of the solvent is greater then one (mass > 1.00) the solvent, if non-polar will sink below water. likewise if the density is less then one (mass < 1.00) the solvent, if non-polar, will float on the surface of the water Physical Properties of Meat. Water; Water Activity Water Holding Capacity; Meat Texture; Moisture; Firmness; Odour And Flavor; PH; Appearance; Water: Principal component of meat. estimated close to 70 -75% (muscle is 65 to 85 %) Most variable component; Most of the meats water is in the free state. Affects juiciness. Water activity (Aw): Water activity (a w) is the term for the amount of.
PHYSICAL PROPERTIES OF ROCK 1. INTRODUCTION 2. WEATHERING AND SLAKING 2.1 Mechanical Weathering 2.2 Chemical weathering 2.3 Importance of Weathering in Rock Engineering 2.4 Slaking 3. SWELLING POTENTIAL 4. HARDNESS AND ABRASIVENESS 5. DEGREE OF FISSURING 6. PHASE RELATIONSHIPS 6.1 Porosity 6.2 Specific Gravity 6.3 Water Content and Saturation 6.4 Bulk Density 7. REFERENCES Recommended Readings. . Physical properties are those properties that can be observed or measured without changing the chemical makeup of the material. Physical properties can give us clues about their chemical composition and processing characteristics. A few common properties are discussed here. Freezing, Melting and Boiling Point Freezing point (Fp) is the temperature [ SOME PHYSICAL PROPERTIES OF WATER TRANSPORT IN WASTE ROCK MATERIAL Michael M. Noel and A. Ian M. Ritchie Managing Mine Wastes Project, Australian Nuclear Science and Technology Organization Private Mail Bag 1, Menai NSW 2234, Australia Phone +61 2 9717 3948, Fax +61 2 9717 9129 e-mail: Michael.email@example.com ABSTRACT A series of water transport simulations of typical waste rock material was. Physical changes are related to physical properties since some measurements require that changes be made. Melting Point: As solid matter is heated it eventually melts or changes into a liquid state at the melting point. Ice (a solid form of water) melts at 0 o C and changes to the liquid state
Properties: Chemically unsaturated, not stable to temperature changes (thermoplastic), readily oxidizable by mastication; soluble in acetone, carbon tetrachloride, and most organic solvents; refraction index 1.52; dielectric constant 2.5.Processed by calaendars and extruders; can be injection-molded with low sulfur and high accelerator. Cured by hot-molding or in open steam, at temperatures. The physical properties of matter are any properties that can be perceived or observed without changing the chemical identity of the sample. In contrast, chemical properties are those that can only be observed and measured by performing a chemical reaction, thus changing the molecular structure of the sample
Physical properties. Soil structure. Soil structure types and their formation. The clumping of the soil textural components of sand, silt and clay forms aggregates and the further association of those aggregates into larger units forms soil structures called peds. The soil structure affects aeration, water movement, conduction of heat, plant root growth and resistance to erosion. Water has the. J Which physical and chemical properties are largely affected by surface area??? Soil Structure: The arrangement and organization of soil particles in the soil, and the tendency of individual soil particles to bind together in aggregates; Aggregation creates intra-aggregrate and inter-aggregate pore space, thereby changing flow paths for water, gases, solutes and pollutants; Effects on plant. Another amazing property of water is it's high surface tension. In fact, water's cohesion is the strongest among all of the known non-metallic liquids. Surface tension, or the inherent attraction between individual molecules of water due to hydrogen bonding, is a key property in allowing life to exist on our planet Water-in-salts form a new family of electrolytes with properties distinct from the ones of conventional aqueous systems and ionic liquids. They are currently investigated for Li-ion batteries and supercapacitors applications, but to date most of the focus was put on the system based on the LiTFSI salt. Here we study the structure and the dynamics of a series of water-in-salts with different.
Physical properties of Hydrogen Peroxide. (i) Hydrogen peroxide is a pale blue syrup liquid. (ii) Hydrogen peroxide boils and decomposes at 150C and freezes at about -0.9C. (iii) Hydrogen peroxide dissolves in water to give a very weak acidic solution. hydrogen peroxide and chemicals in test tubes Water Molecule -- Chemical and Physical Properties. Water is a chemical compound and polar molecule, which is liquid at standard temperature and pressure. It has the chemical formula H 2 O, meaning that one molecule of water is composed of two hydrogen atoms and one oxygen atom. Water is found almost everywhere on earth and is required by all. water: Chemical and Physical Properties. Chemically, water is a compound of hydrogen and oxygen, having the formula H 2 O. It is chemically active, reacting with certain metals and metal oxides to form bases, and with certain oxides of nonmetals to form acids. It reacts with certain organic compounds to form a variety of products, e.g., alcohols from alkenes. Because water is a polar compound. Physical Properties. The molecular mass of heavy water is higher than ordinary water which makes their properties different from each other. It is colorless, odorless and tasteless but heavier than normal water. Ionic compounds are less soluble in heavy water because its dielectric constant is lower than that of H₂O
At the end of this properties of water lesson plan, students will be able to identify physical and chemical properties of water and describe how properties of water are important to the planet's dynamic. Each lesson is designed using the 5E method of instruction to ensure maximum comprehension by the students. The following post will walk you through each of the steps and activities from the. I also had a few calculations that need temperature-dependent water properties. In OpenFOAM®, we can use the polynomial approach for temperature-dependent physical property data. However, I always had to derive them again and again, as I forgot to save the file to an appropriate location where I can find them. Fortunately, I found the data during the website-relaunch. Therefore, I decided to. water (sodium cyanide, NaCN; potassium cyanide, KCN; and calcium cyanide, Ca(CN) 2 Information regarding the physical and chemical properties of cyanide is located in Table 4-2. Cyanides form strong complexes with many metals, particularly those of the transition series. One example of such complex formation is the reaction of cyanide with iron in the formation of ferrocyanide and. Physical and Chemical Properties of Wood Creosote Property Information Reference Molecular weight Not applicable Color Yellowish to colorless Merck 1989 Physical state Liquid Weiss 1986 Melting point No data Boiling point .203 EC Merck 1989 Specific gravity at 25 EC 1.08 Merck 1989 Odor Characteristic smokey odor Merck 1989 Taste Caustic, burning taste Merck 1989 Odor threshold: Water Air No.
Physical and chemical characteristics of oils, fats, and waxes, Champaign, Illinois, AOCS Press, 2006 Red Manuel des corps gras, AFCEG, Paris 1992: Physical Properties of fats and Oils. Coconut oil. Corn oil -14,0 - -11,0: Cottonseed oil, RBD -1.0 - 3,0: Flaxseed oil Olive oil: Palm oil Palm olein: 6,6 - 14,3 Palm stearin : Palm oil, neutralized Palm oil, neutralized and bleached: Peanut oil. Physical Properties of Aggregates 30 What Affect Does F&E Have on Performance? • Tend to break under the roller exposing uncoated faces which may lead to stripping of the asphalt film off the aggregate in the presence of moisture • Particles tend to orient flat under traffic, reducing pavement voids. May lead to flushing • Change in shape affects mixture volumetrics. Physical Properties. . When it changes, the chemical composition of the object does not change. Chemical properties can only be identified during or after a chemical reaction. Common Physical Properties. A physical property is an attribute of matter that can be observed or perceived. There are two main types of physical properties. Water is everywhere, from huge oceans to invisible water molecules making up water vapor in the air. Of course you can see and feel the physical properties of water, but there are also many chemical, electrical, and atomic-scale properties of water that affect all life and substances on Earth Water Properties. One of the things that makes our planet special is the presence of liquid water. Water is fundamental for all life; without it every living thing would die. Water covers about 70% of Earth's surface and it makes up 65-75% of our bodies (82% of our blood is water). Even though water might seem boring - no color, taste, or.
Property-property plots, water mass analysis, isopycnal analysis Two objectives of studying the general circulation are to determine the velocity structure and also the pathways for water parcels. We are also interested in the fluxes of various properties. For physical oceanography and climate, heat and freshwater fluxes are of interest. For climate and biogeochemical cycles, fluxes of other. Finding physical properties on the internet can lead to an interesting journey. Here, we've compiled a list of some of the best sites that we've found over the years. Thermodynamic and Transport Properties of Water and Steam Dr. Bernhard Spang presents an article on the properties of water and steam. Complete with Adobe Acrobat file and MS. Sand is composed of all kinds of rocks and minerals, so its chemical properties greatly vary. Most sand is made of quartz, which is largely silicon oxide. Physically, sand is made up of tiny, loose grains of rocks or minerals that are larger than silt but smaller than gravel. Quartz is a very hard mineral, ranking a 7 on the Mohs hardness scale. The measured physical properties of these nanobubbles are in broad agreement with those of macroscopic bubbles, with one notable exception: the contact angle. The nanobubble contact angle (measured through the denser aqueous phase) was found to be much larger than the macroscopic contact angle on the same substrate How does the bonding influence the chemical and physical properties ie. How does the bonding, and over all structure affect the properties and uses of the material? Eg. Solubility (if at all), temperature range, chemical and physical sensitivities etc. Solubility: Glucose (a monosaccharide) is soluble, however because starch is a polyssarcharide, the bonds between the thousands of glucose.
Water has long been known to exhibit many physical properties that distinguish it from other small molecules of comparable mass. Although chemists refer to these as the anomalous properties of water, they are by no means mysterious; all are entirely predictable consequences of the way the size and nuclear charge of the oxygen atom conspire to distort the electronic charge clouds of the atoms. Water is polar. Water molecules are polar, with partial positive charges on the hydrogens, a partial negative charge on the oxygen, and a bent overall structure. This is because oxygen is more electronegative, meaning that it is better than hydrogen at attracting electrons. Water is an excellent solvent Water dimer | H4O2 | CID 447138 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety. Solvent properties of water. Thanks to its ability to dissolve a wide range of solutes, water is sometimes called the universal solvent. However, this name isn't entirely accurate, since there are some substances (such as oils) that don't dissolve well in water. Generally speaking, water is good at dissolving ions and polar molecules, but.
Note: In the estimation of physical properties, no chemical change occurs, but physical change may occur. Physical change is a change in which physical appearance is affected. There is no breaking or formation of chemical bonds. For example, Ice melts to water is a physical change, no chemical composition is altered. Some of the examples of physical change are melting of solids, boiling of. water volume, the difference between the new level of . x . y . z ©2014 Global Journals Inc. (US) 2. Global Journal of Science Frontier Research Volume XIV Yea r. 2014)) D. I s s VIIIue Version I. Physical Properties of Ginger (Zingiber Officinale) (1) (2) (3) a) Physical Properties. water in the measuring cylinder and the initial level of water is the bulk volume of the seed. v. Sodium is a chemical element that has been used by humans since the ancient times. It is the most important metal from a commercial point of view, as it is utilized by both organic and inorganic industries. Properties of sodium make it a unique element and here, we give you more information about the chemical and physical properties of sodium Estimating Available Water Capacity from basic Soil physical Properties -A comparison of common Pedotransfer Functions Kai Lipsius 22.07.2002 Studienarbeit, under supervision of Prof. Dr. W. Durner 1 Managed by Dr. Michael Sommer, Dipl. geoökol. Matthias Zipprich 2 2 GSF-National research centre 1 Department of Geoecology for environment and health Braunschweig Technical University.
When it comes to physical properties, quartz is pretty much an average mineral and does not show outstanding or extreme properties. Nevertheless quartz is a technically important material that is valued for the combination of certain electrical or optical properties with a great physical strength and chemical resistance. In this chapter I will not simply count off physical properties of quartz. Physical properties: Properties that do not change the chemical nature of matter: Chemical properties: Properties that do change tha chemical nature of matter: Examples of physical properties are: color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density. There are many more. physical properties. Bromine has many physical properties . It has a red-brown color. It is a dense liquid with a melting poin t of -7 ° Celsius and a boiling point of 58.9 ° Celsius. It is nonmetallic and heavy. Bromine evaporates easily at room temperature because it is a liquid. It has an unpleasant odor and is three times as dense as water
PHYSICAL PROPERTIES OF MAGMAS Magma = Molten rock material, with or w/o crystals or other suspended solids. ¥ May or may not contain dissolved gas phase (H2O or CO2) ¥ Vesicles = Bubbles of gas formed in magma Physical Properties of magma depend on: ¥ Temperature ¥ Density ¥ Volatile Content ¥ Viscosity All depend directly indirectly on composition. TEMPERATURE Basalt @ 1 atm: 1200. Physical properties of a soil that affect a plant's ability to grow include: Soil texture, which affects the soil's ability to hold onto nutrients (cation exchange capacity) and water. Texture refers to the relative distribution of the different sized particles in the soil. It is a stable property of soils and, hence, is used in soil classification and description. Soil structure, which. Composition and physical properties of air. Oxygen, nitrogen, argon, carbon dioxide and other components. CO2 in air. Carbon dioxide concentration in air. Water vapor content (humidity). Pressure (elevation/ altitude) effects on air properties and air separation. Psychrometric charts, online psychrometric calculator. History of Earth's atmosphere and CO2 content in air