When warm and cold liquids are mixed, the heat transfer is mainly by_______________?
Correct answer: A. Convection
- A. Convection
- B. Conduction
- C. Radiation
- D. Both A. & C.
Explanation
When warm and cold liquids are mixed, bulk fluid motion carries energy from one portion to another, so convection is the dominant mode. Conduction acts within the fluid, but radiation is negligible in ordinary liquid mixing.
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