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JCECE Medical JCECE Medical Solved Paper-2015

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

    A)  57.0 kJ            

    B)  11.4 kJ

    C)  28.5kJ            

    D)  34.9kJ

    Correct Answer: B

    Solution :

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


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