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

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Quizplus · Accepted Answer

The heat conducted per second per square centimeter is given by Fourier's law: q = k * (dT/dx). Here, q = 4.0 × 10^-3 cal/s·cm·°C * 80 °C/cm = 0.32 cal/s·cm². For one minute (60 seconds), the heat conducted is 0.32 cal/s·cm² * 60 s = 19.2 cal/cm², approximately 19 cal.

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

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