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Derive the expression for work done by expanding a van der Waal's system. Express the relationship:...

Derive the expression for work done by expanding a van der Waal's system. Express the relationship:

a) in terms of volume

b) in terms of pressure

c) Calculate the work done by isothermal expansion of a van der Waals gas from 1 L to 2 L, and compare the result to the work done in an ideal system. Comment on why the values are different.

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