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Byju's Answer
Standard XII
Physics
Carnot Cycle
The coefficie...
Question
The coefficient of performance of a carnot refrigerator is
5
/
3
. If the refrigerator operating at an intake temperature of
−
23
∘
C, then what will be the exhaust temperature?
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Solution
Given:
Coefficient of performance,
β
=
5
3
Source temperature,
T
1
=
−
23
°
C
=
(
−
23
+
273
)
K
=
250
K
To find:
Exhaust temperature,
T
2
=
?
We know the coefficient of performance,
β
=
T
2
T
1
−
T
2
⟹
5
3
=
T
2
250
−
T
2
⟹
1250
−
5
T
2
=
3
T
2
⟹
8
T
2
=
1250
⟹
T
2
=
156.25
K
=
(
156.25
−
273
)
°
C
=
−
116
°
C
Hence, the exhaust temperature is -116°C
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