How much work must be done on a system to decrease its volume from 14.0 L to 5.0 L by exerting a constant pressure of 4.0 atm?

2 answers

w = -p(Vfinal-vinitial)
w = -(4.0)(5.0-14.0)
w = -4.0*-9 = +36 L*atm
If you want to convert to J multiply by 101.325.
5,471.55