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An ideal gas is expandend isothermally ...

An ideal gas is expandend isothermally from`(P_(1) V_(1))` and to `(P_(2)V_(2))` against a constant external pressure. Which of the following is/are correct regarding above process ?

A

If `P_(ext)=P_(2)` piston will not stop automatically at the final state

B

If `P_(ext)=P_(2) ` piston will not stop automatically at the final state

C

Magnitude of work during expansion can vary in the range of `0le|W|leP_(2)(V_(2)-V_(1))`

D

Work will be zero when `P_(ext)` is zero and will bre maximum when `P_(ext)` is eqaul to pressure of system at final state

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The correct Answer is:
b,c,d
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