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Two litres of an ideal gas at a pressure...

Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How much heat is absorbed and how much work is done in the expansion?

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We have `q=-w=p_(ex)(10-2)=0(8)=0 (W_("Free expansion"=0))`
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