A) a closed insulated tank is used to heat 400 l of chemical for a production process. there is no loss of heat energy from the tank. given the density of the chemical is 1100 kg/m3, initial temperature of the chemical is 15°c, and the specific heat value of the chemical is 2.2 kj/(kg. k) how much heat energy is required to raise the temperature of the chemical (i) to 40°c? (15 marks) (ii) how long will it take to heat the chemical to 40°c using a 4 kw heater fully immersed in the chemical? assume 100 % efficiency for the heater. (10 marks) state the units for your answers.