BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    If gas molecules undergo in elastic collision with the walls of the container, then

    A)  temperature of the gas will increase

    B)  temperature of the gas will fall

    C)  pressure of the gas will increase

    D)  neither the temperature nor the pressure will change

    Correct Answer: D

    Solution :

                     Usually, temperature of gas in a container is same as the temperature of the walls of the container. Therefore, during collision there is no exchange of energy. Hence, whether collision is elastic or inelastic molecules rebounce with average   speed.   Therefore,   neither the temperature nor the pressure will change.


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