The efficiency of a Carnot engine is 25%. The efficiency is increased – McqOptions

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1.	The efficiency of a Carnot engine is 25%. The efficiency is increased to 30% when the sink temperature is reduced by 20°C. What will be the source temperature?
A.	300 K
B.	400 K
C.	500 K
D.	600 K
Answer» C. 500 K

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