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VIT Engineering VIT Engineering Solved Paper-2008

  • question_answer
    If   an   endothermic   reaction   occurs spontaneously at constant temperature (T) and pressure (p), then which of the following is true?

    A)  \[\Delta G>0\]        

    B)  \[\Delta H<0\]

    C)  \[\Delta S>0\]  

    D)  \[\Delta S<0\]

    Correct Answer: C

    Solution :

     For endothennic reaction \[\Delta H\] is positive ie, \[\Delta H>0\], For a spontaneous process \[\Delta G\] is always Negative and \[\Delta G=\Delta H-T\Delta S\]thus, to maintain the value of \[\Delta G\] negative, \[\Delta S\] must be positive ie, \[\Delta S>0\].


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