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What is meant by (i) an adiabatic and (i...

What is meant by (i) an adiabatic and (ii) an isothermal change of state of a gas. An ideal gas is expanded adiabatically from volume `V_(1)` to volume `V_(2)` is then compressed isothermally to its original volume `V_(1)` Draw the P-V curves representing the above changes. How will you show. in your graph the net work done by the gas?

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