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J & K CET Engineering J and K - CET Engineering Solved Paper-2007

  • question_answer
    Work done in converting one gram of ice at \[-{{10}^{o}}C\]into steam at \[{{100}^{o}}C\]is

    A)  \[3045\text{ }J\]       

    B)  \[6056\text{ }J\]

    C)  \[721\text{ }J\]        

    D)  \[616\text{ }J\]

    Correct Answer: A

    Solution :

    \[W=JQ\] \[=4.2(0.5\times 10+1\times 80+1\times 100+1\times 540)\] \[=3045\,\,J\]


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