Question

write the expression for coefficient of thermal conductivity ​

Answer 1

thermal conductivity is k in W/m K, the amount of heat transfer through the material is Q in J/S or W, the area of the body is A in m2, the difference in temperature is ΔT in K.

Answer 2

The coefficient of thermal conductivity, or k, is different for each material and defines how good the material is as a

thermal conductor. ... k which represents the coefficient of thermal conductivity of the material. A which is the area through which the heat is flowing.

I hope it can helps you.