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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2000

  • question_answer
    \[{{H}_{2}}+C{{l}_{2}}\xrightarrow{{}}2HCl,\Delta H=194\,kJ.\]In this reaction heat of formation of HCl in kJ is:

    A)  \[+914\,kJ\]                      

    B) \[+\,97\,kJ\]

    C) \[-\,97\,kJ\]                       

    D) \[-194\,kJ\]

    Correct Answer: B

    Solution :

    \[{{H}_{2}}+C{{l}_{2}}\xrightarrow{{}}2HCl,\Delta H=194\,kJ\] \[\therefore \] Heat of formation of \[\text{HCl}\]                                 \[=\frac{194}{2}=97\,kJ\]


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