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MGIMS WARDHA MGIMS WARDHA Solved Paper-2007

  • question_answer
    The heat of formation of\[C{{O}_{2}}\]is\[-393\text{ }kJ\text{ }mo{{l}^{-1}}\] The amount of heat evolved in the formation of 0.156 kg of\[C{{O}_{2}}\]

    A)  \[-1393kJ\]        

    B) \[+1165.5\,kJ\]

    C)  \[+1275.9kJ\]                   

    D)  \[-1165.5\text{ }kJ\]

    Correct Answer: A

    Solution :

                     \[\because \]Heat evolved during the formation of 44 g of\[C{{O}_{2}}=-393kJ\] \[\therefore \]Heat evolved in the formation of 0.156 kg of\[C{{O}_{2}}\] \[=\frac{-393\times 156}{44}\] \[=-1393\text{ }kJ\]


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