Answer: Sensible heat exchange.
- A Latent heat overall
- B Specific heat in most cases
- C Sensible heat exchange
- D Enthalpy under typical conditions
Correct answer: C. Sensible heat exchange
Explanation: Q = mc delta T calculates heat exchanged during temperature change. c is specific heat capacity.
The Carnot cycle alternates two isothermal steps (heat absorbed at TH, released at TC) with two adiabatic steps (no heat exchange); the enclosed loop area equals the net work output, and η = 1−TC/TH is the maximum possible efficiency between those two temperatures.
Concept context
Laws of thermodynamics, heat engines, entropy, and gas processes.