The flow rate of a liquid heating system is 10 g/s. In this system, an energy of 100 cal/s is required at 20 C for the liquid. However, after a while, 80 cal/s energy can be supplied to the system due to a malfunction in the heater. (The volume of the tank is 100 cm3.) a) How can we compensate this 20 cal/s energy loss caused by the fault , what should be done to give 100 cal/s energy to the system? b) Subtract the transfer function of the system. c) Draw the block diagram of the system.