Hydrogen has a heat transfer co-efficient __________ times that of air?
Correct answer: A. 1.5
- A. 1.5
- B. 2.5
- C. 3.5
- D. 4.5
Explanation
Hydrogen has a heat-transfer coefficient approximately 1.5 times that of air under comparable conditions, allowing it to remove heat more effectively. This is one reason hydrogen is used in large generators.
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