Thermodynamics Question 275
Question: A Carnot engine works between a source and a sink maintained at constant temperatures $ T _{1} $ and $ T _{2} $ , For efficiency to be the greatest
Options:
A) $ T _{1} $ and $ T _{2} $ , should be high
B) $ T _{1} $ and $ T _{2} $ should be low
C) $ T _{1} $ should be low and $ T _{2} $ should be high
D) $ T _{1} $ should be high and $ T _{2} $ should be low
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ \eta =1-\frac{T _{2}}{T _{1}} $ .
So for $ \eta $ be high $ T _{1} $ must be high and $ T _{2} $ must be low.
