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NEET Sample Paper NEET Sample Test Paper-84

  • question_answer
    In an adiabatic process, no transfer of heat takes place between system and surroundings. Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following.                                 

    A) \[q=0,\]\[\Delta T\ne 0,\]\[w=0\]

    B) \[q\ne 0,\]\[\Delta T=0,\]\[w=0\]

    C) \[q=0,\]\[\Delta T=0,\]\[w=0\]

    D) \[q=0,\]\[\Delta T<0,\]\[w\ne 0\]

    Correct Answer: C

    Solution :

    [c] Justification: free expansion \[w=0\] adiabatic process q = 0 \[\Delta U\,\,=q+w=0\], this means that internal energy remains constant. Therefore,          \[\Delta T=0.\]


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