I want the K, and please be sure from the answer with steps.

Question 1 A heater for a semiconductor wafer has first order dynamics, the transfer function relating changes in Temperature to changes in the T'(8) K heater input power level is where Khas units of C/Kw and has units in minutes. The process is at steady state when p's) 75+1 an engineer changes the power input stepwise from 3.76 to 888 kW. She notes the following: 1) The process temperature initially is 8201C 2) Four minutes after changing the power input, the temperature is 243.43 3) Thirty minutes later the temperature is 376.35 of function