Calculate the rate of heat
The rate of heat conduction through a layer of still air.
Answer to Problem 56P
Explanation of Solution
Given:
Thickness of air,
Area of the layer of air,
Temperature difference,
Thermal conductivity of air,
Formula Used:
Rate of heat conduction:
Where Q is the amount of heat, and
Calculation:
The rate of heat conduction through a layer of still air is
Conclusion:
The negative sign indicates that heat flows down the temperature gradient.
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