EAMCET Medical EAMCET Medical Solved Paper-1999

  • question_answer
    For an adiabatic change in a gas. if P, V, T denote pressure, volume and absolute temperature of gas at any time and 7 is ratio of specific heats of gas, which of the following equations is true?

    A)  \[{{T}^{\gamma }}{{P}^{1-\gamma }}\]= constant

    B)  \[{{T}^{\gamma -1}}{{P}^{\gamma }}\]= constant

    C)  \[{{T}^{\gamma -1}}{{V}^{\gamma }}\]= constant

    D)  \[{{T}^{\gamma }}{{V}^{\gamma }}\]= constant

    Correct Answer: A

    Solution :

                     Adiabatic process is a sudden or rapid process in which heat remains constant          For an adiabatic change of perfect gas, the poisons equation holds which is given by \[P{{V}^{\gamma }}=\text{constant}\] \[T{{V}^{\gamma -1}}=\text{constant}\] \[\frac{{{T}^{\gamma }}}{{{P}^{\gamma -1}}}=\text{constant}\]                 or            \[{{T}^{\gamma }}{{P}^{1-\gamma }}=\text{constant}\]


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