ES205 Analysis and Design of Engineering Systems Homework Problems Page 1 of 1 Lesson 19 Problem 19.1 (from Fundamentals of Heat and Mass Transfer by Icropera and DeWitt) A chip of length L = 5 mm on a side and thickness t = 1 mm is embedded in a ceramic substrate, and its exposed surface is convectively cooled by a fluid for which hc =150 W/m2-K and T8 = 20oC.