Specific volume of
a gas is the volume of
किसी गैस का विशिष्ट आयतन किसका आयतन है?
Gas
at NTP
Unit
mass of that gas
Total
amount of gas at some stated temperature and pressure
Gas
at - 273o C
Unit
mass of that gas
Specific volume is defined as the number
of cubic meters occupied by one kilogram of a particular substance or the
volume occupied by per unit mass of particular substance.
i.e, 
Hence, the correct option is (B).
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