Heat transfer co-efficient (h1) for liquids increases with__________________?
Correct answer: D. Increasing temperature
- A. None of these
- B. Decreasing temperature
- C. Decreasing Reynolds number
- D. Increasing temperature
Explanation
For most liquids, increasing temperature lowers viscosity, which raises the Reynolds number and usually increases the convective heat-transfer coefficient. The other listed trends would generally reduce heat transfer.
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