An electrically heated process is known to exhibit 2nd-order dynamics with the following parameters: K = 5 °C / kW T= 1.2 min 5 = 0.3 The process is initially at steady-state at 70 °C with the heater...

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Extracted text: An electrically heated process is known to exhibit 2nd-order dynamics with the following parameters: K = 5 °C / kW T= 1.2 min 5 = 0.3 The process is initially at steady-state at 70 °C with the heater input at 20 kW. The heater input is then suddenly changed to 25 kW and held there. a) Derive an expression for the process temperature as a function of time. b) Calculate the maximum temperature observed. When will it occur?