GATE XE (Engineering Sciences) 2024 - Question 66

Section: Thermodynamics | Marks: 1

A heat source at temperature 𝑇𝐻 transfers the same amount of heat to a sink under the following situations: Case A: Sink is at temperature 𝑇𝐿,1 Case B: Sink is at temperature 𝑇𝐿,2 If 𝑇𝐿,1 <⁡𝑇𝐿,2, which one of the following statements is TRUE?

• A. The reversibility is the same, and the entropy generation is greater than zero for Cases A and B
• B. Case B is less reversible with the entropy generation greater than zero
• C. Case B is more reversible with the entropy generation greater than zero
• D. Case B is more reversible with the entropy generation equal to zero

Answer: C. Case B is more reversible with the entropy generation greater than zero