JEE Main & Advanced Physics Thermodynamical Processes Question Bank Topic Test - Thermodynamical Process (2021)

  • question_answer
    A Container having 1 mole of a gas at a temperature 27°C has a movable piston which maintains at constant pressure in container of 1 atm. The gas is compressed until temperature becomes 127°C. The work done is (Cp for gas is 7.03 cal/mol–K)                                 

    A) 703 J

    B) 814 J

    C) 121 J

    D) 2035 J

    Correct Answer: B

    Solution :

    [b]        At constant pressure \[W=P\Delta V=\mu R\Delta T\]\[=1\times 8.31\times 100\]\[=831\approx 814J\]

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