An ideal Carnot heat engine operates between $285 \mathrm {~K}$ and $460 \mathrm {~K} .$ What is its efficiency?
A) 0.38
B) 0.62
C) 0.61
D) 1.61

Question

Quizplus · Accepted Answer

The efficiency of a Carnot engine is given by $1 - \frac{T_c}{T_h}$, where $T_c$ is the cold reservoir temperature and $T_h$ is the hot reservoir temperature. Substituting the given values: $1 - \frac{285}{460} = 0.38$.

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An Ideal Carnot Heat Engine Operates Between $285 \mathrm {~K}$ And $460 \mathrm {~K} .$