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JEE Main & Advanced Physics Thermodynamical Processes Question Bank Adiabatic Process

  • question_answer
    Air in a cylinder is suddenly compressed by a piston, which is then maintained at the same position. With the passage of time    [NCERT 1971; DPMT 1995; JIPMER 1997; KCET 2000; AIIMS 2000; MH CET 2001]

    A)            The pressure decreases

    B)            The pressure increases

    C)            The pressure remains the same

    D)          The pressure may increase or decrease depending upon the nature of the gas

    Correct Answer: A

    Solution :

               Due to compression the temperature of the system increases to a very high value. This causes the flow of heat from system to the surroundings, thus decreasing the temperature. This decrease in temperature results in decrease in pressure.


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