Input | Output |
---|---|
![]() Air flows into a heat engine at ambient conditions of 100 kPa, 300 K, as shown in <image 1>. Energy is supplied as 1200 kJ per kilogram of air from a 1500 K source, and in some part of the process a heat transfer loss of 300 kJ/kg air occurs at 750 K.The air leaves the engine at 100 kPa, 800 K. Find the first- and second-law efficiencies (A) 0.32 0.67 (B) 0.32,0.74 (C) 0.67,0.32 (D) 0.74,0.32 Answer with the option's letter from the given choices directly. No punctuation. | B Expected Answer: A Difficulty: Medium Subfield: Thermodynamics |
{ "id": "gen-M81bJDk6h50x0W0fk5MJVVwgieuJ", "model": "google/gemini-pro-vision", "choices": [ { "message": { "role": "assistant", "content": " B" }, "finish_reason": "STOP" } ], "object": "chat.completion", "created": 1708556644, "usage": { "prompt_tokens": 1764, "completion_tokens": 4, "total_tokens": 1768 } }