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

  • question_answer
    Which of the following statement is correct [NCERT 1978]

    A)                 \[\Delta H\] is positive for exothermic reaction

    B)                 \[\Delta H\] is negative for endothermic reaction

    C)                 The heat of neutralization of strong acid and strong base is always the same

    D)                 The enthalpy of fusion is negative

    Correct Answer: C

    Solution :

           \[\Delta H=-ve\] for exothermic reaction.            \[\Delta H=+ve\] for endothermic reaction                                 Enthalpy of fusion is + ve.


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