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  4. In a gas equation, PV= RT V refers to the volume of

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Q. In a gas equation, PV= RT V refers to the volume of

Thermal Properties of Matter

Solution:

In the equation PV=nRT, R is the universal gas constant which has the units as $J mol ^{-1} K^{-1}$. Comparing the units on both the sides we see that the $n$ has the units of moles. Thus the equation PV=RT represents the volume of 1 mole.