A vertical flash drum is designed with a m, lbm/hr feed consisting of n-hexane and n-octane. The mass fraction of n-hexane in the feed stream is mf. The vertical flash drum will operate at T 'F and P atm. Use the McWilliams equations shown in Equation 2-30 and Table 2-3 for K values. m, Ibm/hr T, OF P, atm mf, mass fraction of n- hexane in the feed stream 0.27 85,800 266 1.82 Sketch the problem according to the problem description. Find the mole fractions of the liquid phase and the vapor phase, and V/F, using the Rachford- Rice equation, as shown below (equation 2-41 in our textbook). The Newton's rule is not allowed for this problem. 1 -), (K-1)2