Now Tony settles upon a Carnot engine. Calculate the efficiency of the Carnot en

Question

Now Tony settles upon a Carnot engine. Calculate the efficiency of the Carnot engine if the temperature it operates between are 350 K and 250 K.

Answer: Option A
:
A
The efficiency of a Carnot engine is given by the formula

η_{H . E} = 1 - \frac{T_{L}}{T_{H}}

Substituting for known values we get

η_{H . E} = 1 - \frac{250}{350} = \frac{2}{7}

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