Thermodynamics Question 289

Question: A Carnot engine whose efficiency is 50% has an exhaust temperature of 500 K. If the efficiency is to be 60% with the same intake temperature, the exhaust temperature must be (in K)

Options:

A) 800

B) 200

C) 400

D) 600

Show Answer

Answer:

Correct Answer: C

Solution:

[c] η=1T1T2 or 50100=1500T1T1=1000K

Also, 60100=1T21000T2=400K



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