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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2011

  • question_answer
    For the reversible reaction,\[A\,(s)+B\,(g)\]  \[C\,\,(g)+D(g),\,\Delta {{G}^{o}}=-350\,kJ\], which one of the following statements is true?

    A)  The reaction is thermodynamically non-feasible

    B)  The entropy change is negative

    C)  Equilibrium constant is greater than one

    D)  The reaction should be instantaneous

    Correct Answer: C

    Solution :

    \[A\,(s)=B\,(g)C\,(g)+D\,(g),\,\Delta {{G}^{o}}=-350\,kJ\]Relationship between \[\Delta {{G}^{o}}\] and equilibrium constant is                 \[\Delta {{G}^{o}}=-2.303\,RT\,\log \,\,{{K}_{p}}\] When \[{{K}_{p}}>1;\,\Delta {{G}^{o}}\] is negative.


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