A gas expands from I to F along the three paths indicated in the figure below. Calculate the work done on the gas along each of the following paths. (a) IAF ———-J (b) IF ———- J (c) IBF ———— J P (atm) V (liters) 24 Solution work done on the gas=-work done by the gas part a: along the path IAF: work done on the gas=-(work done by the gas along IA+work done by the gas along AF) =-(pressure at I*change in volume+0) =-7 atm*(7-3) ltr =-2837.1 J part b: along the path IF: work done on the gas=-work done by the gas along IF =-area under the straight line IF =-0.5*(7+1) atm*(7-3) ltr =-1621.2 J part c: along the path IBF: work done on the gas=-work done by the gas along BF =-1 atm*(7-3) ltr =-405.3 J .