6.1 Increasing Automobile Rear Windows Temperature A very thin transparent heating element is attached to the inner surface of the rear window to defog an automobile. The glass of an automobile rear win- dow is 0.004 m thick and has a thermal conductivity of k = 1.4 W/(m-K). The interior air temperature and convection coefficient are 25C and 10 W/mK, respectively, and the exterior (ambient) air temperature and convection coef- ficient are -10C and 65 W/m, respectively. Develop an expression for the temperature distribution T(z) in the window. What is the inner surface tem- perature of the window? Answer:--4.6C