please help in this questions. thanks

Yout the cold space and thei to the hol apace, and the COP 195.8ife. 171.turie, 4.06 195.7/ke 169.12nns, 4.07 question 2 known. 202a=33,78b7=16.51FH14=3,6m14nis=35.9= Exercise 1: A refrigerator with R-134a as the working fluid has a minimum temperature of 10C and a maximum pressure of 1MPa. Assume an ideal refrigeration cycle. Find the specific heat transfer from the cold space and that to the hot space, and the COP. Exercise 2: Air at 500F,150lbf/in2, and 10ft/sec expands adiabatically through a nozzle and exits at 60F,15lbf/in2. For a mass flow rate of 5lb/sec determine the exit area, in in2. Repeat for an isentropic expansion to 15lbf/ in2. Model the air as an ideal gas with specific heat cp=0.24Btu/lb.R(k=1.4)