The heat input to a heat engine is 40 kJ while the heat output from th – McqOptions

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1.	The heat input to a heat engine is 40 kJ while the heat output from the hear engine is 20 kJ. Determine the efficiency of the heat engine.
A.	0.3
B.	0.45
C.	0.35
D.	0.5
Answer» E.

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