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JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Heat of reaction

  • question_answer
    In the complete combustion of butanol \[{{C}_{4}}{{H}_{9}}OH(l)\], if \[\Delta H\] is enthalpy of combustion and \[\Delta E\] is the heat of combustion at constant volume, then                [EAMCET 1997]

    A)                 \[\Delta H<\Delta E\]

    B)                 \[\Delta H=\Delta E\]

    C)                 \[\Delta H>\Delta E\]

    D)                 \[\Delta H,\,\Delta E\] relation cannot be predicted

    Correct Answer: C

    Solution :

              In the complete combustion of butanol \[\Delta H>\Delta E\].


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