In which case does the thermal conductivity increases from left to right?
Answers
The cumulative effect from all collisions results in a net flux of heat from the hot body to the colder body. We call this transfer of heat between two objects in contact thermal conduction.
There are four factors (kk, AA, \Delta TΔT, dd) that affect the rate at which heat is conducted through a material. These four factors are included in the equation below that was deduced from and is confirmed by experiments.
\Large \dfrac{Q}{t}=\dfrac{kA\Delta T}{d}
t /Q = kAΔT /d
The letter QQ represents the amount of heat transferred in a time tt, kk is the thermal conductivity constant for the material, AA is the cross sectional area of the material transferring heat, \Delta TΔT is the difference in temperature between one side of the material and the other, and dd is the thickness of the material.
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