Evaluation

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.	Google: Gemini Pro Vision 1.0 mmmu / Energy_and_PowerPublic B Difficulty: Medium Subfield: Thermodynamics

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

(D) 0.74,0.32

Answer with the option's letter from the given choices directly. No punctuation.

Google: Gemini Pro Vision 1.0

mmmu / Energy_and_PowerPublic

Difficulty: Medium

Subfield: Thermodynamics

Evaluation ID: 432fbcd9-54a4-411f-957d-252c67d0e23b
Created: February 21, 2024

Raw Output

{
  "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
  }
}