Question: In a Carnot cycle, what is the efficiency dependent on?

Options:

1. The work done by the system
2. The temperatures of the hot and cold reservoirs
3. The type of working fluid
4. The pressure of the system

Correct Answer: The temperatures of the hot and cold reservoirs

Solution:

The efficiency of a Carnot cycle is given by the formula η = 1 - (T_c/T_h), where T_c is the temperature of the cold reservoir and T_h is the temperature of the hot reservoir.