J & K CET Engineering J and K - CET Engineering Solved Paper-2013

  • question_answer
    Which of the following is not the postulate of the kinetic theory of gases?

    A)  Gas molecules are in a permanent state of random motion

    B)  Pressure of gas is due to molecular impacts on the walls

    C)  The molecules are perfectly elastic

    D)  The molecular collisions are elastic

    Correct Answer: C

    Solution :

     The molecules are perfectly elastic. It is not the postulate of kinetic theory. The correct postulate or assumption is "The molecule collisions are perfectly elastic.?.


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