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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2011

  • question_answer
    For the reversible reaction, \[A(s)+B(g)\]\[A(s)+B(g)C(g)+D(g),\] \[\Delta {{G}^{o}}=-350kJ,\] 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 :

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


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