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Home > Molar volume

In chemistry, the molar volume of a substance is the volume of one mole of that substance. It can be computed as the substance's atomic or molecular weight, divided by its density. The SI unit of molar volume is cubic metres per mole (m3mol-1).

For an ideal gas, the standard molar volume is the volume that is occumpied by one mole of substance (in gasseous form) at standard temperature and pressure (STP) of 273.15 K (H2O freezing temperature) and 101325 Pa (1 atm). It is 0.022414 m3mol-1 or 22.42 L/mol and is directly related to the universal gas constant R in the ideal gas law.

Cubic centimetres (cm3) a measure of volume one million times smaller than a cubic metre, are sometimes also used, to give units of cm3mol-1.

The molar volume is usually given for a solidA solid is a state of matter, characterized by a definite volume and a definite shape (i. it resists deformation). Within a solid, atoms/ molecules are relatively close together, or "rigid"; however, this does not prevent the solid from becoming deformed substance at 298.15 K (temperature of standard stateIn chemistry, the standard state of a material is its state at 1 standard atmosphere (101 325 pascals) and 25 degrees Celsius (298. 15 kelvin). When the standard state is referred to in a chemical reaction, it also includes the condition that all solution). Apart from temperature and density, it depends on phase and allotrope of the substance.







Chemical properties Physical quantityA physical quantity is the result of measurement and usually expressed as the product of a numerical value and a physical unit (whereby SI units are usually preferred). Example : P 42. 3 x 103 W 42. 3 kW where P represents the physical quantity for power

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Topics: Molar Volume, Molar Gas Constant, Molar...

Molar gas constantValues of R8. 314570 (J)(K-1)(mol-1)0. 0820578 (L)(atm)(K-1)(mol-1)62. 3639 (L)(torr)(K-1)(mol-1)1. 987 (cal)(K-1)(mol-1) Molar gas constant (also known as universal gas constant usually denoted by symbol R is the constant occurring in the universal gas eMolar volumeIn chemistry, the molar volume of a substance is the volume of one mole of that substance. It can be computed as the substance's atomic or molecular weight, divided by its density. The SI unit of molar volume is cubic metres per mole (m3mol-1). For an ideMolarA molar is the fourth kind of tooth in mammals. A molar (M) is a unit of concentration (aka molarity) of solutions: see Mole (unit), Molar volume Molar is a village in the comarca (county) of Priorat, province of Tarragona in the autonomous region of Cata
Molar (tooth)Molars are the rearmost and most complicated kind of tooth in most mammals. In many mammals they grind food, hence the name which means "millstone". Molars differ considerably from one species to another, so there are many terms describing them: TribospheMolar massMolar mass is the mass of one mole of an element or chemical compound. In chemistry, the unit is g mol-1. The atomic mass listed for the elements on the periodic table can be interpreted in two ways: first as the mass of a single average atom of the elemeMolar solutionIn chemistry, a molar solution (also called a one molar solution or a 1 M solution is a solution containing one mole of a given compound per litre of solution. A molar solution consists of two components: a soluble compound and its solvent. One mole of an
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