Question
Find the efficiency of the Carnot engine working between boiling point and freezing point of water.
✓
Answer
Efficiency of Carnot engine, $\eta=1-\frac{\text{T}_2}{\text{T}_1}$ $=1-\frac{273\text{K}}{373\text{K}}=\frac{100}{373}$ $=0.268=26.8\%$
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