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AIIMS AIIMS Solved Paper-2004

  • question_answer
    N moles of a monoatomic gas is carried round the reversible rectangular cycle ABCDA as shown in the diagram. The temperature at-A is to. The thermodynamic efficiency of the cycle

    A) 15%                                       

    B) 50%                       

    C) 20%                       

    D)       25%

    Correct Answer: B

    Solution :

                    Maximum efficiency of reversible process is given by \[\eta =1-\frac{T}{T}\] At    \[A{{P}_{0}}{{V}_{0}}=nR{{T}_{0}}\] At    \[B2{{P}_{0}}{{V}_{0}}=nRT\] \[T=2{{T}_{0}}\] \[\therefore \]   \[\eta =1-\frac{{{T}_{0}}}{2{{T}_{0}}}=\frac{1}{2}=50%\]


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