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. 2. Making a process table. 3. Calculating the totals for Work, Heat, and Internal-Energy-Change. Identifung the P
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. 2. Making a process table. 3. Calculating the totals for Work, Heat, and Internal-Energy-Change. Identifung the P
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
Related questions
Question

Transcribed Image Text: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.
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 3.0 moles of hellum gas
(monatomic). During the process a->b, the volume increases by a factor of
3.0.
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:
b
Enter a number.
Pressure Volume.
a->b
b->c
(->a
Work
P
Work-
Heat
du =
T₁ = 300 K
P₁ = 100,000 Pa
Refrigerator Cycle
Heat
J
3
Temperature
isothermal
du
V

Transcribed Image Text: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:
Pressure. Volume
Enter a number.
a->b
b->c
c->a
Work
Work
Heat=
dU =
Q-hot=
Q-cold =
Coefficient =
Heat
3
Temperature
du
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