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Define isochoric process. What is the wo...

Define isochoric process. What is the work done in such process?

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If a closed thermodynamic system does not change its volume when it exchanges some energy with its environment, the process is known as an isochoric process. In this process, the volume V = constant , so, `dV = 0`.
Then, work done, `W = int pdV = 0` i.e., no work is done in such a process.
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Knowledge Check

  • Temperature of 1 mole of an ideal gas is increased from 300 K to 310 K under isochoric process. Heat supplied to the gas in this process is theta=25 R where R = universal gas constant. What amount of work has to be done by the gas if temperature of the gas decreases from 310 K and 300 K adiabatically

    A
    25 R
    B
    50 R
    C
    10 R
    D
    `25/2 R`

  • 5.6 litre of helium gas at STP is adiabatically compressed to 0.7 litre. Taking the initial temperature to be T_1 , the work done in the process is

    A
    `-9/8 RT_1`
    B
    `3/2 RT_1`
    C
    `15/8 RT_1`
    D
    `9/2 RT_1`

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