1. Refrigerant - 12 as saturated vapor at 0.5 MPa is isentropically compressed by a compressor in a refrigeration plant to 0.9 MPa. Determine the enthalpy change for the process and the final fluid phase.
2. What is the quality and internal energy of 0.1 lb m of steam contained in a 1.3 ft
3. Container at a temperature of 233 ° F? 3. Air enters the combustion of a jet aircraft engine at 800 kPa and 600 K and exits at 2200 K. Since an ideal combustion cha mber is isobaric, determine the entropy change and exit specific volume.
4. Ten grams of water at 15 C and 100 kPa completely fills a balloon. The balloon is then heated on the stove top at constant pressure until the temperature reaches 125 ° C. Determine the boundary work in kJ involved in this process. What is the boundary power, if the process takes 700 seconds?