CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2001

  • question_answer
    During an adiabatic process the pressure of a gas is found to be proportional to the cube of its absolute temperature. The ratio of \[{{C}_{p}}/{{C}_{\upsilon }}\]for the gas is:

    A)  \[\frac{3}{2}\]                                  

    B) \[\frac{4}{3}\]

    C)  2                                            

    D)  \[\frac{5}{3}\]

    Correct Answer: A

    Solution :

    From the relation of adiabatic process we have \[{{P}^{\gamma -1}}={{T}^{\gamma }}\] \[P={{T}^{\frac{\gamma -1}{\gamma }}}\]                 so                           \[\frac{\gamma -1}{\gamma }=3\] \[\gamma =\frac{3}{2}\]


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