I know this wasn't assigned as well ... but would it be possible to show how to do it in 2 steps (not reversible)? #25 Thanks.

-- Anonymous, February 29, 2000

Answers

In this problem, you need to find the work for each step and then sum to get w total

w = -P Delta V (P1,V1)->(P2,V1) w = 0 (constant volume process) (P2,V1)->(P2,V2) w = -(2.24 atm)(12.8-5.74 L)= -16 Latm (P2,V2)->(P3,V2) w = 0 (P3,V2)->(P3,V3) w = -(1 atm)(28.7 - 12.8 L)= -15.9 Latm w total = (-16) + (-15.9)= -32 Latm change Latm to J by using the relation 101.3 J/1 Latm to get w = -3200 J

-- Anonymous, February 29, 2000