JEE Main & Advanced Sample Paper JEE Main Sample Paper-25

  • question_answer
    The compressibility of a gas is less than unity at S.T.P therefore,

    A)  \[{{V}_{m}}>22.4\] litres         

    B)  \[{{V}_{m}}<22.4\] litres

    C)  \[{{V}_{m}}=22.4\]litres          

    D)  \[{{V}_{m}}=44.8\] litres

    Correct Answer: B

    Solution :

    Compressibility of an ideal gas \[(Z)\,=\frac{P\times V}{mRT}\]  For a mole of ideal gas at STP, \[(Z)\,=\frac{P\times 22.4}{RT}\]  For other gases Z < 1. It is equal to     ? Hence \[{{V}_{\infty }}<22.4\] litre.


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