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

  • question_answer
    Heat of formation of \[C{{O}_{2}}(g),\,\,{{H}_{2}}O(l)\] and \[C{{H}_{4}}(g)\] are        ? 94.0, ? 68.4 and ? 17.9 kcal respectively. The heat of combustion of methane is

    A)                 ? 212.9 kcal        

    B)                 ? 136.8 kcal

    C)                 ? 304.3 kcal

    D)                 ? 105.2 kcal

    Correct Answer: A

    Solution :

              Find \[\Delta H\] for \[C{{H}_{4}}+2{{O}_{2}}\to C{{O}_{2}}+2{{H}_{2}}{{O}_{(g)}}\].


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