JEE Main & Advanced Chemistry States of Matter Question Bank Kinetic molecular theory of gases and Molecular collisions

  • question_answer If P, V, M, T and R are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas, the density is given by           [CBSE PMT 1989, 91]

    A)                 \[\frac{RT}{PM}\]           

    B)                 \[\frac{P}{RT}\]

    C)                 \[\frac{M}{V}\]

    D)                 \[\frac{PM}{RT}\]

    Correct Answer: D

    Solution :

               \[PV=nRT=\frac{m}{M}RT\]                                 \[\therefore \frac{m}{V}=\frac{PM}{RT}=\]density

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