question_answer

Calculate \[\Delta G\] and \[\Delta {{G}^{o}}\] for the reaction : \[A+B\rightleftharpoons C+D\] at 27°C. Equilibrium constant (K) for this reaction \[={{10}^{2}}\].

Answer:

                \[\Delta G=0\] because the reaction is in equilibrium. \[\Delta G{}^\circ =-2.303\,RT\,\log \,K=-2.303\]\[\times 8.314\,J\,{{K}^{-1}}\,mo{{l}^{-1}}\,\times 300\,K\,\log \,{{10}^{2}}\] \[=-11488\,J\,mo{{l}^{-1}}=-11.488\,kJ\,mo{{l}^{-1}}.\]