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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2001

  • question_answer
    For the reaction\[{{H}_{2}}O(s)\rightleftharpoons {{H}_{2}}O(l)\]at \[0{{\,}^{o}}C\]and normal pressure :

    A)  \[\Delta H >T \Delta \,S\]               

    B) \[\Delta H =T \Delta \,S\]

    C)  \[\Delta H =\Delta \,G\]                         

    D) \[\Delta H <T\Delta \,S\]

    Correct Answer: B

    Solution :

    \[{{H}_{2}}O(g)\rightleftharpoons {{H}_{2}}O(1)\] We know that \[\Delta G=\Delta H-T\Delta S\] At equilibrium \[\Delta G=0\] Therefore AH=TAS\[\Delta H=T\Delta S\]


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