In a mixture of air (20 L/min) and carbon dioxide (4.5 mol %), carbon dioxide is desired to be absorbed with water (4L/min). The absorber column is a 25-stage packed column with a diameter of 80mm and a fill height of 1.27m. The filling material is a Raschig ring with a ceramic regularity of 15 mm. Water enters the absorption column from the top at 25C and 765mmHg. Gas also enters from the bottom under the same conditions. Find the gas and liquid compositions leaving the absorption column by simulating this column.