Specific volume
In thermodynamics, the specific volume of a substance (symbol: ν, nu) is the quotient of the substance's volume (V) to its mass (m): ν = V m {\displaystyle \nu ={\frac {V}{m}}} It is a mass-specific intrinsic property of the substance. It is the reciprocal of density ρ (rho) and it is also related to the molar volume and molar mass: ν = ρ − 1 = V ~ M {\displaystyle \nu =\rho ^{-1}={\frac {\tilde {V}}{M}}} The standard unit of specific volume is cubic meters per kilogram (m3/kg), but other units include ft3/lb, ft3/slug, or mL/g.