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JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank 2nd and 3rd law of thermodynamics and Entropy

  • question_answer
    One mole of an ideal gas at \[300K\] is expanded isothermally from an initial volume of 1 litre to 10 litres. The change in energy for this process is \[(R=2\,cal\,mo{{l}^{-1}}{{K}^{-1}})\] [CBSE PMT 1998]

    A)                 163.7 cal              

    B)                 850.2 cal

    C)                 1381.1 cal           

    D)                 Zero

    Correct Answer: D

    Solution :

              For isothermal expansion of ideal gas, \[\Delta E=0\].


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