JEE Main & Advanced Chemistry Equilibrium Question Bank Activation energy, Standard free energy and Degree of dissociation and Vapour density

  • question_answer In an equilibrium reaction for which                                                                                   \[\Delta {{G}^{0}}=0\] , the equilibrium constant                                                                                                   \[K=\]                                                 [BHU 1987]

    A)                 0             

    B)                 1

    C)                 2             

    D)                 10

    Correct Answer: B

    Solution :

           If \[\Delta {{G}^{o}}=0\]                    \[\Delta {{G}^{o}}=-2.303\,\,RT\,\,\log \,{{K}_{p}}\]            \[\log \,{{K}_{p}}=0\]        \[(\because \,\text{log1}=\text{0)}\]                                 \[{{K}_{p}}=1\].


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