A chemical reaction that takes place in a gas-liquid environment. The reactant A enters the reactor as a gas and the reactant B enters as a liquid. The gas dissolves in the liquid where it chemically reacts to produce a liquid C. The product is drawn off the reactor with the effluent FL The un-reacted gas vents of the top of the vessel. The reaction mechanism is given as follows: A +BC Model the system and perform a degree of freedom analysis