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AFMC AFMC Solved Paper-2001

  • question_answer
    Two molecules of an ideal gas expand spontaneously into a vacuum. The work done is :

    A)  2J                                          

    B) 4J

    C) 8J                                           

    D) zero

    Correct Answer: D

    Solution :

    When an ideal gas expands in vacuum the  work done is zero as in vacuum there is no force of attraction or repulsion.


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