1. A Carnot cycle refrigerator operates between -11°C and 22°C. What is the coefficient of performance? (A) 0.25 (B) 1.1 (C) 4.3 (D) 7.9 2, An ideal gas inside a closed system is initially at atmospheric pressure and a temperature of 300K. The pressure is increased by 0.5 bar: Most nearly, what is the final temperature of the gas? (A) 150K (B) 200K (C) 300K (D) 450K
1. A Carnot cycle refrigerator operates between -11°C and 22°C. What is the coefficient of performance? (A) 0.25 (B) 1.1 (C) 4.3 (D) 7.9 2, An ideal gas inside a closed system is initially at atmospheric pressure and a temperature of 300K. The pressure is increased by 0.5 bar: Most nearly, what is the final temperature of the gas? (A) 150K (B) 200K (C) 300K (D) 450K
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Transcribed Image Text:Note!
Ideal Gas Law:
P₂V₂
Tz
OP,V,
T₁
=
Atmospheric Pressure
= 101.3 k Pa
1 bar = 100k Pa
Carnot Cycle Efficiency:
Refrigeration!
(Coefficient of performance
COP)
-
сор =
TL
TH-TL
1.
A Carnot cycle refrigerator operates between -11°C
and 22°C. What is the coefficient of performance?
(A) 0.25
(B) 1.1
(C) 4.3
(D) 7.9
2,
An ideal gas inside a closed system is initially at
atmospheric pressure and a temperature of 300K. The
pressure is increased by 0.5 bar: Most nearly, what is the
final temperature of the gas?
(A) 150K
(B) 200K
(C) 300K
(D) 450K
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