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MGIMS WARDHA MGIMS WARDHA Solved Paper-2011

  • question_answer
    One mole of a perfect gas expands isothermally to ten times of its original volume. The change in entropy is

    A)  0.1R                                     

    B)  2.303 R

    C)  10.0 R                                  

    D)  100.0 R

    Correct Answer: B

    Solution :

                     \[\Delta S=2.303nR\,\log \frac{{{V}_{2}}}{{{V}_{1}}}\] \[n=1\] \[\therefore \] \[\Delta S=2.303\text{ }R\text{ }\log \frac{10}{1}\] \[\Delta S=2.303\text{ }R\]          (\[\log \text{ }10=1\])


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