Complete Analysis of a Refrigerator Goal Solve for the performance coefficient of a refrigerator using a five- step process the includes: 1. Making a state table. P 2. Making a process table. 3. Calculating the totals for Work, Heat, and Internal-Energy-Change. 4. Identifying the heat input (cold reservoir) and output (hot reservoir). isothermal 5. Calculating the performance coefficient of the refrigerator. . . . . Problem Shown in the figure to the right is a cyclic process undergone by a refrigerator. Your refrigerator shall use 3.0 moles of helium gas b [ monatomic). During the process a->b, the volume increases by a factor of 4.0 V T, = 300 K Pa = 100,000 Pa Refrigerator Cycle Solution (1) Fill in the State Table (all pressures in Pascals, all Pressure Volume Temperature volumes in cubic meters, all temperatures in K). Work Heat du a- (2) Fill in the Process Table (all entries in Joules). b- >c C- Work = (3) Find the Totals: Heat = du = (4) Find the heat input (from "cold reservoir") and Q-hot = the heat output (to "hot reservoir"): Q-cold = 1 (5) Find the performance coefficient of the Coefficient = refrigerator