JEE Main & Advanced Physics Thermodynamical Processes Question Bank Topic Test - Thermodynamical Process (2021)

  • question_answer
    During an isothermal expansion of an ideal gas

    A) Its internal energy decreases

    B) Its internal energy does not change

    C) The work done by the gas is equal to the quantity of heat absorbed by it       

    D) Both [b] and [c] are correct

    Correct Answer: D

    Solution :

    [d] During isothermal change T = constant Þ DU = 0
    also from FLOT, DQ = DW.

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