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A gas undergoes a change of state during...

A gas undergoes a change of state during which 100J of heat is supplied to it and it does 20J of work. The system is brough back to its original state through a process during which 20 J of heat is released by the gas. What is the work done by the gas in the second process?

Text Solution

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The correct Answer is:
60J
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Knowledge Check

  • An ideal gas goes from the state i to the state int as shown in .the work done by the gas during the process

    A
    is positive
    B
    is negative
    C
    is zero
    D
    cannot be obtained from this information.

  • A sample of ideal gas (gamma = 1.4) is heated at constant pressure. If 100 J of heat is supplied to the gas the work done by the gas is

    A
    28.57 J
    B
    56.54 J
    C
    38.92 J
    D
    65.38 J

  • Find the change in internal energy if heat supplied to the gaseous system is 100 J and work done by the system is 80 J.

    A
    5 J
    B
    30 J
    C
    10 J
    D
    20 J

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