1. The compressor in a refrigerator takes refrigerant R-134a in at 15 lbf/ in.2, 0 F and compresses it to 125 lbf/ in.2, 100 F. With the room at 70 F, find the reversible heat transfer and the minimum compressor work.
2. A compressor in a refrigerator receives R-410a at 20 psia, -40 F and it brings it up to 100 psia, using actual specific work of 23.48 Btu/lbm in an adiabatic compression. Find the specific reversible work.