NEET Sample Paper NEET Sample Test Paper-50

  • question_answer
    When two mole of an ideal gas \[\left( Cp\,\,=\,\,\frac{5}{2}R \right)\] heated from 300 K to 600 K at constant pressure. The change in entropy of gas \[\left( \Delta S \right)\] is-

    A) \[\frac{3}{2}R\ell n2\]                

    B) \[-\frac{3}{2}R\ell n2\]

    C) \[5\,R\ell n2\]                 

    D) \[\frac{5}{2}\,R\ell n2\]

    Correct Answer: C

    Solution :

    \[\Delta S\,=\,n{{C}_{p}}\ell n\frac{{{T}_{2}}}{{{T}_{1}}}\]


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