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JEE Main & Advanced Physics Thermodynamical Processes Question Bank Adiabatic Process

  • question_answer
    During the adiabatic expansion of 2 moles of a gas, the internal energy of the gas is found to decrease by 2 joules, the work done during the process on the gas will be equal to [CPMT 1988]

    A)            1 J  

    B)            \[-1\ J\]

    C)            2 J  

    D)            ? 2 J

    Correct Answer: D

    Solution :

                       \[dQ=0=-2+dW\Rightarrow dW=2\ J\]                    \[\Rightarrow \]Work done by the gas \[=2\ J\]            \[\Rightarrow \] Work done on the gas \[=-2\ J\]


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