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NEET AIPMT SOLVED PAPER SCREENING 2010

  • question_answer
    If \[\text{U}\] and \[\Delta W\] represent the increase in internal energy and work done by the system respectively in a thermodynamically process, which of the following is true?

    A) \[\text{U=}-\text{W,}\]in a adiabatic process

    B) \[\text{U=}\text{W,}\]in a isothermal process

    C) \[\text{U=}\text{W,}\] in a adiabatic process

    D) \[\text{U=}-\text{W,}\]in a isothermal process

    Correct Answer: A

    Solution :

    From first law of thermodynamics \[\Delta Q=\Delta U+\Delta W\] For adiabatic process \[\Delta Q=0\] \[\Rightarrow \]                               \[\Delta U=-\Delta W\]


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