JEE Main & Advanced Chemistry States of Matter Question Bank Ideal gas equation and Related gas laws

  • question_answer Under what conditions will a pure sample of an ideal gas not only exhibit a pressure of 1 atm but also a concentration of 1 mole \[litre-1\] \[(R=0.082\,litre\,atm\,mo{{l}^{-1}}\,{{\deg }^{-1}})\]    [CBSE PMT 1993]

    A)                 At STP  

    B)                 When \[V=22.4\,litres\]               

    C)                 When \[T=12\,K\]

    D)                 Impossible under any conditions

    Correct Answer: C

    Solution :

               \[PV=nRT\]                    \[P=\frac{n}{V}RT\] \[\because \frac{n}{V}=C\]Þ  \[P=CRT\]                                 \[T=\frac{P}{CR}=\frac{1}{1\times .821}={{12}^{o}}K\]

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