Question

In a Carnot engine, when the working substance gives heat to the sink :

• A. the temperature of the sink increases
• B. the temperature of the sink remains the same
• C. the temperature of the source decreases
• D. the temperatures of both the sink and the source decrease

Answer 1

The correct option is B the temperature of the sink remains the same

In a Carnot engine, the sink is maintained at a fixed lower temperature to which any amount of heat can be rejected. The sink has infinite thermal capacity so the temperature remains constant even if any amount of heat is rejected to it.