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JEE Main & Advanced Physics Thermodynamical Processes Question Bank Isobaric and Isochoric Processes

  • question_answer
    Two kg of water is converted into steam by boiling at atmospheric pressure. The volume changes from \[2\times {{10}^{-3}}\,{{m}^{3}}\] to \[3.34{{m}^{3}}.\] The work done by the system is about                                        [Roorkee 2000]

    A)            ? 340 kJ                                  

    B)            ? 170 kJ

    C)            170 kJ                                      

    D)            340 kJ

    Correct Answer: D

    Solution :

                       \[W=P\Delta V=1.01\times {{10}^{5}}(3.34-2\times {{10}^{-3}})\]            \[=337\times {{10}^{3}}J\approx 340\ KJ\]


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