Q4 (30 points) A seven-component mixture with the below composition and K-values at T, P is flashed at these T and P. Component K A 0.01 zi 15.0 B 0.25 5.0 D 0.1 3.0 E 0.17 2.0 F 0.05 1.0 G 0.12 0.5 H 0.3 0.2 (a) Make a plot of the Rachford-Rice flash function at intervals of Y of 0.1, and estimate the correct root of Y. f{y} = {1+ *CK-1) 1 1=1 (b) The following is an alternative form of the flash function. Make a plot of this equation at interval of Y of 0.1 and explain why the Rachford-Rice function in part (a) is preferred. f{Y} = . z(1-k;) 1+ 4(ki - 1) (c) Using the correct ' value estimated, find the vapor and liquid flow rates and composition for the flash column for a feed of 100 kmol/h