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calculate the work for an ideal gas that is compressed from 2L to 1L by a...

calculate the work for an ideal gas that is compressed from 2L to 1L by a constant external pressure at 2 bar at 25 degrees celsius

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Answer #1

Pressure = p = 2 bar          ( 1 bar = 0.9869 atm)

                   p = 1.9738 atm

                 V = 2-1 = 1L

work = W= PV = 1.9738 x 1= 1.9738 L-atm

but 1L-atm = 101.3 j

     1.9738 L-atm = 101.3 x 1.9738 = 199.946 J

workdone on the system = W = 199.946J = 0.199 KJ

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