JCECE Medical JCECE Medical Solved Paper-2013

  • question_answer
    If a gas expands at constant temperature, it indicates that                    

    A)  kinetic energy of molecules decreases

    B)  pressure of the gas increases

    C)  kinetic energy of molecules remains same

    D)  number of the molecules of gas increases

    Correct Answer: C

    Solution :

     \[KE=\frac{3}{2}RT\]or \[KE\propto T\] Here, the temperature of gas remains constant, hence kinetic energy of molecules remains the same.


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