carnot engine

Question

A Carnot engine works between temperatures 27°C and 127°C. The efficiency of the engine is:

RankGuru · Accepted Answer

1. **Convert to Kelvin**: 
   - $T_{sink} = 27 + 273 = 300	ext{ K}$.
   - $T_{source} = 127 + 273 = 400	ext{ K}$.
2. **Efficiency Formula**: $\eta = 1 - \frac{T_{sink}}{T_{source}}$.
3. **Calculation**: $\eta = 1 - \frac{300}{400} = 1 - 0.75 = 0.25$.
4. **Percentage**: $\eta = 25\%$.

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carnot engine

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