64 of oxygen at the pressure of and undergo the following processes: 1)... · PHYSICS Dataset #7731
Physics · thermodynamics
Problem
64 gr of oxygen at the pressure of P=4atm and T=27∘C undergo the following processes:
1) Cooling to constant volume until the pressure is reduced by half.
2) Constant pressure heating to double its volume.
3) Isothermal compression until reaching the initial conditions.
Calculate the efficiency of a refrigerating machine that works according to that cycle.