BCECE Medical BCECE Medical Solved Papers-2011

  • question_answer
    The expression for total kinetic energy per unit volume of gas is

    A)  \[\frac{E}{V}=\frac{p}{2}\]  

    B)  \[\frac{E}{V}=\frac{1}{3}p\]

    C)  \[\frac{E}{V}=\frac{2}{3}p\]

    D)  \[\frac{E}{V}=\frac{3}{2}p\]

    Correct Answer: D

    Solution :

    Pressure \[p=\frac{1}{2}\frac{m{{\overline{c}}^{2}}}{V}\]                 \[\frac{1}{2}m{{\overline{c}}^{2}}=\frac{3}{2}pV\]                 \[E=\frac{3}{2}pV\] \[\frac{E}{V}=\frac{3}{2}p\]


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