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astru025
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Homework Statement
A heat engine takes in 1030 J of energy at 1000 K and exhausts 585 J at 250 K. What are the actual and maximum theoretical efficiencies of this heat engine?
Homework Equations
For maximum efficiency I got 75 % by taking 1 - (250K / 1000K). For actual efficiency the equation is W/ Q or work out / heat in.
The Attempt at a Solution
I am not sure where to start on this problem and any help would be very nice!