Answer: Cp = Cv + R.
- A Cp = Cv + R
- B Cp = Cv - R
- C Cp = gamma x Cv
- D Cp = Cv / R
Correct answer: A. Cp = Cv + R
Explanation: Mayer's relation: Cp - Cv = R (for 1 mole of ideal gas). R = 8.314 J/(mol K).
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.