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Allisa [31]
3 years ago
6

Calculate the efficiency of a Carnot Engine working between temperature of 1200°C and 200°C.

Engineering
1 answer:
swat323 years ago
8 0

Answer:

efficiency = 0.678

Explanation:

First we have to change temperatures from °C to K (always in thermodynamics absolute temperature is used).

\text{hot body temperature,}T_H = 1200 \circC + 273.15 = 1473.15 K

\text{cold body temperature,} T_C = 200 \circC + 273.15 = 473.15 K

Efficiency \eta of a carnot engine can be calculated only with hot body and cold body temperature by

\eta = 1 - \frac{T_C}{T_H}

\eta = 1 - \frac{473.15 K}{1473.15 K}

\eta = 0.678

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