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JCECE Engineering JCECE Engineering Solved Paper-2015

  • question_answer
    The heat of neutralisation of a strong acid and a strong alkali is\[57.0\,\,kJ\,\,mo{{l}^{-1}}\]. The heat released when \[0.5\] mole of \[HN{{O}_{3}}\] solution is mixed with \[0.2\] mole of \[KOH\] is

    A) \[57.0\,\,kJ\]                     

    B) \[11.4\,\,kJ\]

    C) \[28.5\,\,kJ\]                     

    D)  \[34.9\,\,kJ\]

    Correct Answer: B

    Solution :

    \[0.2\]  mole of \[KOH\] will neutralise \[0.2\] mole of\[HN{{O}_{3}}\]. Thus, heat evolved\[=57\times 0.2=11.4\,\,kJ\]


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