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BCECE Engineering BCECE Engineering Solved Paper-2013

  • question_answer
    If 110 J of heat are added to a gaseous system, whose internal energy is 40J, then the -amount of external work done is

    A)  40 J       

    B)         70 J   

    C)  110 J    

    D)         150 J

    Correct Answer: B

    Solution :

    We have, \[\Delta Q=\Delta U+\Delta W\] Here, \[\Delta Q=110\,J,\Delta U=40\,J\] \[\therefore \]  \[\Delta W=70\,J\]


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