Answer: 2490 J.
- A ≈1250 J
- B ≈2490 J
- C ≈4150 J
- D ≈3740 J
Correct answer: B. ≈2490 J
Explanation: Q = nC<sub>v</sub>ΔT = 2 × (3/2)(8.31) × 100 ≈ 2490 J.
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.