please answer part 1,2 and 3 step by step

Q3/ A temperature control loop has been designed for a a particular process. The loop have 1/6 decay ratio and for there to be no offset between the set point and measure value of the temperature. To test the loop, operators provided a disturbance to a system by instananteously changing the flow stream by 3 degree higher than the set point temperature. The period of oscillation was 10min. Determine: 1. The second order transfer function for the process. 2. The maximum temperature that observed. 3. When the maximum temperature occurred