Required information The PV diagram shown is for a heat engine that uses 1.310 mol of a diatomic ideal gas as its working substance. In the constant-temperature processes A and C, the gas is in contact with reservoirs at temperatures 373 K and 273 K, respectively. In constant-volume process B, the gas temperature decreases as heat flows into the cold reservoir. In constant-volume process D, the gas temperature increases as heat flows from the hot reservoir. Pressure (kPa) 160 150 140 130 120 110 100 90 80 0.019 0.02 0.021 0.022 0.023 0.024 0.025 0.026 Volume (m³) D 273 K A 373 K B To compare the efficiency of the heat engine to that of an ideal engine, what is the ratio of the efficiency of an ideal engine using the same reservoirs to that of the heat engine, if the heat input per cycle is 3629 J?

Required information The PV diagram shown is for a heat engine that uses 1.310 mol of a diatomic ideal gas as its working substance. In the constant-temperature processes A and C, the gas is in contact with reservoirs at temperatures 373 K and 273 K, respectively. In constant-volume process B, the gas temperature decreases as heat flows into the cold reservoir. In constant-volume process D, the gas temperature increases as heat flows from the hot reservoir. Pressure (kPa) 160 150 140 130 120 110 100 90 80 0.019 0.02 0.021 0.022 0.023 0.024 0.025 0.026 Volume (m³) D 273 K A 373 K B To compare the efficiency of the heat engine to that of an ideal engine, what is the ratio of the efficiency of an ideal engine using the same reservoirs to that of the heat engine, if the heat input per cycle is 3629 J?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Required information
The PV diagram shown is for a heat engine that uses 1.310 mol of a diatomic ideal gas as its working substance. In the
constant-temperature processes A and C, the gas is in contact with reservoirs at temperatures 373 K and 273 K,
respectively. In constant-volume process B, the gas temperature decreases as heat flows into the cold reservoir. In
constant-volume process D, the gas temperature increases as heat flows from the hot reservoir.
Pressure (kPa)
160
150
140
130
120
110
100
90
80
0.019 0.02 0.021 0.022 0.023 0.024 0.025
Volume (m³)
0.2675
D
273 K
A
C
373 K
B
0.026
To compare the efficiency of the heat engine to that of an ideal engine, what is the ratio of the efficiency of an ideal engine using the
same reservoirs to that of the heat engine, if the heat input per cycle is 3629 J?

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