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## Homework Statement

If a steam engine operates at half of its theoretical maximum efficiency, and does work at a rate of W J/s, calculate how much heat is discharged per second.

## The Attempt at a Solution

e

_{max}= W/Q

_{H}(Carnot)

e

_{max}= W/2Q

_{H}

--> Q

_{H}= W/e

_{max}

Wrong answer. What is my mistake?