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The initial state of a certain gas is (p...

The initial state of a certain gas is `(p_(i),V_(i),T_(i))`. It undergoes explansion till its volume becomes `V_(f)`. Consider the following two cases
(a) the expansion takes place at constant temperature.
(b) the expansion takes place at constant pressure.
Plot the `p-V` diagram for each case. In which of the two cases, is the work done by the gas more ?

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