Let us say thermal conductivity of a wall is governed by the relation k = k0 (1

• A. + α t). In that case the temperature at the mid-plane of the heat conducting wall would be
• B. Av. of the temperature at the wall faces
• C. More than average of the temperature at the wall faces
• D. Less than average of the temperature at the wall faces
• E. Depends upon the temperature difference between the wall faces