Goal Solve for the performance coefficient of a refrigerator using a five- step process the includes: 1. Making a state

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Goal Solve For The Performance Coefficient Of A Refrigerator Using A Five Step Process The Includes 1 Making A State 1 (156.28 KiB) Viewed 67 times

Goal Solve for the performance coefficient of a refrigerator using a five- step process the includes: 1. Making a state table. 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). 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 9.0 moles of helium gas (monatomic). During the process a->b, the volume increases by a factor of 5.0. Solution (1) Fill in the State Table (all pressures in Pascals, all volumes in cubic meters, all temperatures in K). (2) Fill in the Process Table (all entries in Joules). (3) Find the Totals: (4) Find the heat input (from "cold reservoir") and the heat output (to "hot reservoir"): (5) Find the performance coefficient of the refrigerator: b Pressure 100000 100000 499997.8 a- >b Y b- Work >a -180659 >C✔ 0 ✓ Work = Heat = dU = Q-hot = Q-cold = Coefficient = P T₂ = 300 K P₁ = 100,000 Pa Refrigerator Cycle Volume 0.2245 1.1225 0.2245 Heat -180659 X J J J J 300 isothermal Temperature 1499.96 du b 1499.96 0 Enter V number.