Asked by Cortney

During which stroke of a four-stroke internal combustion engine is work done to the system of gases?

A. Exhaust stroke
B. Intake stroke
C. Compression stroke
D. Power stroke
Answered by Cortney
never mind the answer is D
Answered by DrBob222
I don't see how. The power stroke to me is when the small chamber of gasoline fires and the piston is driven down and drives the wheels. It appears to me that the system of gases is doing work on its surroundings.
Answered by Anonymous
is compression stoke, cortney u are wrong
Answered by Angieeee
C. Compression stroke
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