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Starting with the same initial conditions, an ideal gas expands from volume V 1 to V 2 in three different ways. The work done by the gas is W 1 if the process is purely isothermal, W 2 , if the process is purely adiabatic and W 3 if the process is purely isobaric. Then, choose the correct option.

1. W 1 < W 2 < W 3
2. W 2 < W 3 < W 1
3. W 3 < W 1 < W 2
4. W 2 < W 1 < W 3

Correct answer: W 2 < W 1 < W 3

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