1. A seven-component mixture is flashed at a fixed P and T. a) Using the K values and feed composition below, make a plot of the Rachford-Rice flash function f{}=i=1c1+(Ki1)zi(1Ki) at intervals of of 0.1 , and estimate the correct root of . b) An alternative form of the flash function is f{}=i=1c1+(Ki1)ziKi1 Make a plot of this equation at intervals of of 0.1 and explain why the RachfordRice function is preferred. 2. Use a process simulator with the Wilson equation for a solution at 105C containing 25mol% water (W) and 75mol% formic acid (F) to; a) Compute the bubble point pressure b) Compute the dew point pressure c) Determine if the mixture forms an azeotrope. If so, predict the azeotropic pressure at 105C and the composition. 1. A seven-component mixture is flashed at a fixed P and T. a) Using the K values and feed composition below, make a plot of the Rachford-Rice flash function f{}=i=1c1+(Ki1)zi(1Ki) at intervals of of 0.1 , and estimate the correct root of . b) An alternative form of the flash function is f{}=i=1c1+(Ki1)ziKi1 Make a plot of this equation at intervals of of 0.1 and explain why the RachfordRice function is preferred. 2. Use a process simulator with the Wilson equation for a solution at 105C containing 25mol% water (W) and 75mol% formic acid (F) to; a) Compute the bubble point pressure b) Compute the dew point pressure c) Determine if the mixture forms an azeotrope. If so, predict the azeotropic pressure at 105C and the composition