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(C) The ideal gas equation is given by $PV = nRT$,where $P$ is pressure,$V$ is volume,$n$ is the number of moles,$R$ is the universal gas constant,and

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$J\,mol^{-1}\,K^{-1}$

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(C) The ideal gas equation is given by $PV = nRT$,where $P$ is pressure,$V$ is volume,$n$ is the number of moles,$R$ is the universal gas constant,and $T$ is the absolute temperature.Rearranging the formula for $R$,we get $R = \frac{PV}{nT}$.The $S.I.$ unit of pressure $P$ is Pascal ($Pa$ or $N/m^2$),volume $V$ is $m^3$,$n$ is $mol$,and temperature $T$ is $K$.Substituting these units: $R = \frac{(N/m^2) \cdot m^3}{mol \cdot K} = \frac{N \cdot m}{mol \cdot K} = \frac{J}{mol \cdot K}$.Therefore,the $S.I.$ unit of the universal gas constant is $J\,mol^{-1}\,K^{-1}$.

$S.I.$ unit of universal gas constant is

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