TEST BANK FOR Introduction to Heat 4th Edition and Fundamentals of Heat 5th Edition By Incropera F.P. and Dewitt D.P.

KNOWN: Heat rate, q, through one-dimensional wall of area A, thickness L, thermal conductivity k and inner temperature, T1. FIND: The outer temperature of the wall, T2. SCHEMATIC: ASSUMPTIONS: (1) One-dimensional conduction in the x-direction, (2) Steady-state conditions, (3) Constant properties. ANALYSIS: The rate equation for conduction through the wall is given by Fourier’s law, q q q A=-k dT dx A = kA T T cond x x L = = ¢¢ × × 1 2 - . Solving for T2 gives T T q L 2 1...