Question 1: Learning Outcome: Application of McCabe Thiele Analysis and Kremser Equation for Immiscible Liquid-Liquid Extraction Systems. The equilibrium for extraction of acetic acid from water into 3 -heptanol at 25C is y=0.828x. The equilibrium curve is provided as below for convenience. 400kg/h of feed ( R) with x0=0.5wt% acetic acid and 99.5wt% water is contacted in a countercurrent extractor with 560kg/h of solvent (E) that is yNN+1=0.01 wt\% acetic acid and 99.99wt% 3-heptanol. Outlet raffinate concentration is xN=0.03 wt\% acetic acid and 99.97 wt\% water. Assume water and 3 heptanol are immiscible and that R and E are constant. a. Define the problem, find y1, and then determine the number of equilibrium stages (N) required using Mccabe Thiele Method. b. What is minimum solvent flow rate, Emin ? c. Compare that to the answer obtained from Kremser method