The Temperature Gradient in a Wall Is 80^oC/cm, and the Thermal

question 23

Multiple Choice

The temperature gradient in a wall is 80^oC/cm, and the thermal conductivity of this wall is 4.0 × 10^-3 cal/s · cm · C^o. The amount of heat conducted per minute per square centimeter through this wall is approximately

• A) 19 cal.
• B) 27 cal.
• C) 35 cal.
• D) 42 cal.
• E) 0.42 kcal.

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