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  3. RAJASTHAN ­ PET

RAJASTHAN ­ PET Rajasthan PET Solved Paper-2011

  • question_answer
    For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter,\[\Delta U\]and W corresponds to

    A)  \[\Delta U<0,W=0\]

    B)  \[\Delta U<0,W<0\]

    C)  \[\Delta U>0,W=0\]

    D)  \[\Delta U>0,W>0\]

    Correct Answer: A

    Solution :

     In bomb calorimeter, heat of combustion is determined at constant volume, hence heat of reaction corresponds to\[\Delta U\]. \[\Delta U<0\] \[W=0\]


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