Question

What happens to the thermal conductivity of Wall it its thickness is doubled

Answer 1

Answer:

The thermal conductivity is doubled if the thickness of wall is doubled because the larger the area of a solid the larger will be the number of molecules and electrons on each layer so the greater will be rate of flow of heat through solid.

Explanation:

Answer 2

Answer:

Larger the cross sectional area A of solid, larger number of molecules and free electrons on each layer parallel to its cross sectional area and hence greater will be rate of flow of heat through solid. Thus, If Thickness of wall is doubled,The thermal conductivity becomes double.

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