Shown are four figures that represent the heat flow in a heat engine. The thickness of the arrows represents the amount of heat flow. TH is the high-temperature reservoir, TC is the low-temperature reservoir, QH is heat to/from TH, QC is heat to/from TC, and W is work.  Which figure best represents a real heat engine?

A. A
B. B
C. C
D. D


Answer: B

Physics & Space Science

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