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The volume of an ideal gas Vis filled in...

The volume of an ideal gas Vis filled in a cylinder fitted with a piston at pressure P: The volume of the gas is changed to 4V each time by three different processes : (i) Change at constant pressure (ii) Adiabatic change (iii) Isothermal changes. Show these changes on P-V diagram. State giving reason in which change the work done is maximum.

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