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Physics
Physics
Problem
A Carnot engine has an efficiency of
40
%
40\%
40%
when the temperature of the hot reservoir is
227
∘
C
227^{\circ}\text{C}
22
7
∘
C
. What is the temperature of the cold reservoir? a)
84
∘
C
84^{\circ}\text{C}
8
4
∘
C
b)
−
27
∘
C
-27^{\circ}\text{C}
−
2
7
∘
C
c)
27
∘
C
27^{\circ}\text{C}
2
7
∘
C
d)
136
∘
C
136^{\circ}\text{C}
13
6
∘
C
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