In a cell, the amount nutrition coming in equals the amount of waste going out. this is an example of

a cycle
equilibrium
a model
ethics

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.