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An engine takes in 200 J of heat, expels 40 J of heat, and does 160 J of work. What is the efficiency of the engine? A. 40% B. 60% C. 80% D. 20%

An engine takes in 200 J of heat, expels 40 J of heat, and does 160 J of work. What is the efficiency of the engine? A. 40% B. 60% C. 80% D. 20%
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An engine takes in 200 J of heat, expels 40 J of heat, and does 160 J of work. What is the efficiency of the engine?

A. 40%
B. 60%
C. 80%
D. 20%

asked
User Aviad Hadad
by
8.2k points

1 Answer

4 votes
The answer would be C. 80%
Put 160 over 200 and find the GCF
160/200÷40=4/5=80%

answered
User Holgac
by
8.2k points
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