(a) How much work is done per cycle? (b) What is the temperature at B? (c) How much heat input is required for A → B?

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3 Engine Cycle
B
P
A
D
An ideal engine operates with a perfect monatomic gas that has y = 4/3 in the cycle shown above:
A - B C D → A
Point Pressure [atm] Volume [L] Temperature [K]
A
1.0
22.4
300
2.0
33.6
900
(a) How much work is done per cycle?
(b) What is the temperature at B?
(c) How much heat input is required for A → B?
(d) How much heat input is required for B C?
(e) What is the efficiency of this particular engine cycle?
(f) This engine works from heat reservoirs at 900 K and 300 K. What is the maximum efficiency for any engine working
between these reservoirs?
Transcribed Image Text:3 Engine Cycle B P A D An ideal engine operates with a perfect monatomic gas that has y = 4/3 in the cycle shown above: A - B C D → A Point Pressure [atm] Volume [L] Temperature [K] A 1.0 22.4 300 2.0 33.6 900 (a) How much work is done per cycle? (b) What is the temperature at B? (c) How much heat input is required for A → B? (d) How much heat input is required for B C? (e) What is the efficiency of this particular engine cycle? (f) This engine works from heat reservoirs at 900 K and 300 K. What is the maximum efficiency for any engine working between these reservoirs?
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