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AIIMS AIIMS Solved Paper-2005

  • 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 \[\Delta U\] \[\therefore \]  \[\Delta U<0\] \[W=0\]


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