A 10-cm thick aluminum plate (ρ = 2702 kg/m3 , cp = 903 J/kg · K, k = 237 W/m · K, and α =...

A 10-cm thick aluminum plate (ρ = 2702 kg/m3 , cp = 903 J/kg · K, k = 237 W/m · K, and α = 97.1 × 10-6 m2 /s) is being heated in liquid with temperature of 500°C. The aluminum plate has a uniform initial temperature of 25°C. If the surface temperature of the aluminum plate is approximately the liquid temperature, determine the temperature at the center plane of the aluminum plate after 15 seconds of heating.

FIGURE P18-62