Question

Calculate the efficiency of a Carnot engine operating between temperatures of 500K and 300K.

• A. 40%
• B. 60%
• C. 70%
• D. 50%

Hint:

For a Carnot engine, efficiency is calculated using the temperatures of the hot and cold reservoirs.

Answer 1

The Correct Option is A

The efficiency of a Carnot engine is given by: \[ \eta = 1 - \frac{T_C}{T_H} \] Substituting the values: \[ \eta = 1 - \frac{300}{500} = 0.4 = 40% \]