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

  • question_answer
    The heat evolved in the combustion of methane is given by the following equations: \[C{{H}_{4}}(g)+2{{O}_{2}}(g)\,\to \,C{{O}_{2}}(g)+{{H}_{2}}O(l);\]\[\Delta H=-890.3\,kJ\] How many grams of methane would be required to produce 445.15 kJ of heat of combustion                     [AMU 2002]

    A)                 4 g         

    B)                 8 g

    C)                 12 g       

    D)                 16 g

    Correct Answer: B

    Solution :

              \[C{{H}_{4}}\]required\[=\frac{445.15\times 16}{890.3}=8gm\].


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