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

  • question_answer
    2.1 g of Fe combines with S evolving 3.77 kJ. The heat of formation of FeS in kJ/mol is     [AMU (Engg.) 1999]

    A)                 ? 1.79   

    B)                 ? 100.5

    C)                 ? 3.77   

    D)                 None of these

    Correct Answer: B

    Solution :

              \[\Delta H/mole\] of  \[FeS=\frac{3.77\times 56}{2.1}=100.5\].


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