Asystem expands from a volume of 1.00 l to 2.00 l against a constant external pressure of 1.00 atm. what is the work (w) done by the system? (1 l·atm = 101.3 j)

The work done by a system kept at constant pressure is given by:

where
p is the pressure
is the final volume
is the initial volume

If we plug the numbers given by the problem into this equation, we find


And since , we have that the work done is

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