1. The temperature distribution across a wall 0.3m thick at a certain instant of time is T(x) = a + bx + cx2 , where T is in 0C and x in meters, a = 200 0C, b = -200 0C, c = 30 0C/m2

The wall has a thermal conductivity of 1W/mK.

a) On a unit surface area basis, determine the rate of heat transfer into, out of the wall?
b) If cold surface is exposed to a fluid at 100 0C, what is the convective coefficient?