Thermodynamics Question 159

Question: The efficiency of Carnot’s engine operating between reservoirs, maintained at temperatures 27oC and 123oC, is

[DPMT 2002, 03; BVP 2004]

Options:

A) 50%

B) 24%

C) 0.75%

D) 0.4%

Show Answer

Answer:

Correct Answer: A

Solution:

η=1T2T1=1(273+123)(273+27)=1150300=12=50



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