AP Physics 2mediummcq1 pt
A Carnot engine operates between 400 K and 300 K. Its maximum efficiency is
A.25%
B.75%
C.100%
D.33%
Explanation
Core Concept
e = 1 − TC/TH = 1 − 300/400 = 0.25 = 25%.
Correct Answer
A25%
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