[University Thermodynamics] Refrigerators HomeworkHelp

Hello all, I have a couple of thermodynamics problems that I am having some issues finding the right formulas, maybe you give me some hint.

http://ift.tt/1IjQroL

Thank you!

Submitted November 30, 2015 at 08:43PM by forchaner http://ift.tt/1YDnBUy HomeworkHelp