Question

Which of the following diagram correctly represents the working of a Carnot's refrigerator?

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

$\Rightarrow$ In case of a Carnot refrigerator, the working substance absorbs the work and then extracts heat $\left(Q_2\right)$ from sink (lower temperature body) along with rejection of heat $\left(Q_1\right)$ to the source (heat reservoir at at higher temperature).

Since,the second law of thermodynamics states that heat can not be transferred from a colder body (sink) to a hotter body (source) without the work done by an external agent on the working substance.
$\therefore$ Option $\left(b\right)$ is correct.