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NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    A monoatomie gas supplied the heat Q very slowly keeping the pressure constant. The work done by the gas will:

    A)  \[\frac{2}{3}Q\]                    

    B)  \[\frac{3}{5}Q\]

    C)  \[\frac{2}{5}Q\]

    D)  \[\frac{1}{5}Q\]

    Correct Answer: C

    Solution :

    Since, we know that for monoatomic gas at constant pressure. \[\frac{\Delta U}{Q}=\frac{3}{5}\]             \[\Rightarrow \]            \[\Delta U=\frac{3Q}{5}\]                 ??.(i) Now, from first law of thermodynamics, we have             \[W=\Delta Q-\Delta U\]             \[=Q-\frac{3Q}{5}=\frac{2Q}{5}\]  [Using equation (i)]                           


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