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NEET Chemistry Thermodynamics / रासायनिक उष्मागतिकी NEET PYQ-Thermodynamics

  • question_answer
    One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 L to 10 L.  The \[\Delta E\] for this process is                                                                               [AIPMT 1998]

    A)  163.7 cal         

    B)       zero                 

    C)  1381.1 cal       

    D)       9 L atm

    Correct Answer: B

    Solution :

    Isothermal means temperature is constant. At constant temperature, change in internal energy \[(\Delta E)\] remains constant. So, \[\Delta E=0\]


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