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JCECE Medical JCECE Medical Solved Paper-2005

  • question_answer
    If P is the pressure, V the volume, R the gas constant, \[k\]the Boltzmann constant and T the absolute temperature, then the number of molecules in the given mass of the gas is given by:

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

    B) \[\frac{PV}{kT}\]

    C)  \[\frac{PR}{T}\]

    D) \[PV\]

    Correct Answer: B

    Solution :

     From ideal gas equation \[PV=nkT\] where k is Boltzmann's constant, P is pressure, V is volume and T is absolute temperature. Hence, number of molecules in given mass of gas \[n=\frac{PV}{kT}\]


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