Question

what is the efficiency of carnot engine when the temperature of source and sink are equal​

Answer 1

Answer:

The efficiency of a Carnot's engine at a particular source and sink temperature is 12 . When the sink temperature is reduced by 100∘C, the engine efficiency, becomes 23.

Answer 2

Answer:

The efficiency of the Carnot engine will be zero.

Explanation:

The efficiency of the Carnot engine is given as,

$\eta=1-\frac{T_2}{T_1}$      (1)

Where,

η=efficiency of the Carnot engine

T₂=temperature of the sink in kelvin

T₁=temperature of the source in kelvin

From the question we have,

T₁=T₂            (2)

By using equation (2) in equation (1) we get;

$\eta=1-\frac{T_2}{T_2}$

$\eta=1-1$

$\eta=0$     (3)

Hence, the efficiency of the Carnot engine will be zero.

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