For 1 mol of a real gas kept at constant temp | vedclass

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(A) For $1$ mol of an ideal gas,the equation is $PV = nRT$. Since $n = 1$,we have $PV = RT$.At the $PV$ axis,the pressure $P$ approaches $0$. For a re

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$\frac{20}{R}$

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(A) For $1$ mol of an ideal gas,the equation is $PV = nRT$. Since $n = 1$,we have $PV = RT$.At the $PV$ axis,the pressure $P$ approaches $0$. For a real gas,as $P 	o 0$,the gas behaves ideally.Therefore,the intercept on the $PV$ axis is given by $\lim_{P 	o 0} PV = nRT$.Given the intercept is $20$,we have $20 = (1) 	imes R 	imes T$.Solving for $T$,we get $T = \frac{20}{R}$.

For $1$ mol of a real gas kept at constant temperature $T$,the graph of $PV$ vs $P$ intersects the $PV$ axis at $20$. Hence,the temperature $T$ is ($R$ = universal gas constant).

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