Section: Thermodynamics | Marks: 2
A Carnot engine operates between two temperatures T1 and T2 such that T1 > T2. If the thermal efficiency of the engine is to be increased by changing one of the temperatures by a constant amount ∆T > 0, which one of the following cases will give the highest increase in efficiency?
- A. Increasing T1 by ∆T while keeping T2 constant
- B. Decreasing T1 by ∆T while keeping T2 constant
- C. Increasing T2 by ∆T while keeping T1 constant
- D. Decreasing T2 by ∆T while keeping T1 constant
Answer: D. Decreasing T2 by ∆T while keeping T1 constant