In SI units, thermal conductivity is expressed in__________________?
Correct answer: A. Watt/m.°K
- A. Watt/m.°K
- B. Watt/m2. °K
- C. Watt/m2. °K
- D. Watt/m4. °K
Explanation
Thermal conductivity relates heat flux to temperature gradient, so its SI unit is W/(m·K). The area-based unit W/(m²·K) belongs to the heat-transfer coefficient, not conductivity.
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