2a should be 19.9

19.9 min

Problem 2: (20 points) A conduction Problem: A steak is exposed to an oven temperature of 300F (TS). Determine the exposure time required for the temperature at the center of the steak to reach the well-done temperature of 200F (T.). The steak is at assumed initial temperature of 50F (T.). The thermal diffusivity of the stake is at 0.006ft2/hour. Compute the time in minutes for the two following assumed cases: a) The steak is a slab with 2-in thickness and 8-in long. b) The steak is a cylinder with 3-in diameter and 8-in long