8. Determine the nodal voltages for the circuit of Figure 5. The answer should include the equivalent circuit and solution methods.
-3 A
3.12
7.12
M
402
-8 A
522
1 112
-25 A
Figure 5​

An ammonia compressor has a 5% clearance volume and displacement rate of 80 l/s and pumps against a condensing temperature of 40°c. for two different temperatures of -10°c and 10°c, compute the mass flow rate of refrigerant assuming the clearance volumetric efficiency applies. discharge specific volume corresponding to-10°c and 10°c are 112.5 l/kg and 95 l/kg, respectively.