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BCECE Engineering BCECE Engineering Solved Paper-2003

  • question_answer
    An ideal monoatomic gas is taken round the cycle ABCDA as shown in figure. The work done during the cycle is :

    A) \[PV\]                                  

    B) \[2PV\]

    C) \[\frac{PV}{2}\]                               

    D) \[\text{zero}\]

    Correct Answer: A

    Solution :

    Work done during the cycle ABCDA = area of the rectangle ABCD \[\text{=AB}\,\text{ }\!\!\times\!\!\text{ }\,\text{AD}\] \[=(2P-P)(2V-V)\]                 \[=PV\]


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