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NEET Sample Paper NEET Sample Test Paper-45

  • question_answer
    The value of \[\Delta H{}^\circ \] for the hypothetical reaction, \[{{A}_{2}}B\left( s \right)\,\,\to \,\,2A\left( s \right)+\frac{1}{2}\text{ }{{B}_{2}}\,\,\left( g \right)\text{ }is,\,\,+\,\,7.3\text{ }kJ\] The value of \[\Delta U{}^\circ \] for the reaction is -

    A) > 7.3 kJ                       

    B) < 7.3 Kj

    C) = 7.3 kJ                       

    D) unpredictable

    Correct Answer: B

    Solution :

    \[\Delta H=\Delta E+{{\Delta }_{ng}}\text{ }RT\]


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