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

  • question_answer
    In the reaction: \[{{H}_{2}}+C{{l}_{2}}\,\to \,2HCl,\,\Delta H=194\,kJ\]. Heat of formation of \[HCl\] is     [KCET 2000; AFMC 2000; CPMT 2000]

    A)                 + 97 kJ  

    B)                 + 194 kJ

    C)                 ? 194 kJ

    D)                 ? 97 kJ

    Correct Answer: A

    Solution :

              Heat of formation \[=\frac{194}{2}=97\,kJ\].


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