Problem 1. (20 points) Acetone is absorbed from its mixture with air in a plane column by a nonvolatile absorption oil. The entering gas contains 30 mole percent acetone, and the entering oil is acetone-free. Of the acetone in the air 97 percent is to be absorbed, and the concentrated liquor at the bottom of the tower is to contain 10 mole percent acetone. The equilibrium relationship is ye=1.9xe. Plot the operating line and determine the number of ideal stages. Use graph paper to plot equilibrium and operating line and no of stages. for ctrinning