Molar volume

Common card · No. 393137

In chemistry and related fields, the molar volume, symbol Vm, or V ~ {\displaystyle {\tilde {V}}} of a substance is the quotient of the volume (V) occupied by a substance to the amount of substance (n), usually at a given temperature and pressure. It is also equal to the molar mass (M) divided by the mass density (ρ): V m = V n = M ρ {\displaystyle V_{\text{m}}={\frac {V}{n}}={\frac {M}{\rho }}} The molar volume has the SI unit of cubic metres per mole (m3/mol), although it is more typical to use the units cubic decimetres per mole (dm3/mol) for gases, and cubic centimetres per mole (cm3/mol) for liquids and solids.

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