A neutralization reaction is carried out in a semi-batch reactor. The reactor is filled with acid, the reactor is closed and the base is introduced through the lid with stirring. For good efficiency, this reactor needs to follow a certain temperature and pH. Draw the physical schematic of the reactor and place the control devices on it. The reactor jacket is designed to heat when needed and cool when needed. Draw the block diagram of the pH controller. Is this a feedback loop? Indicate the type of control performed. Give explanations.