For a given flash separation of 1-propanol (1) and 1-butanol (2) (different conditions than in Problem 1), it is determined that V/F = 0.42, x1 = 0.527, y1 = 0.701, T = 110 oC, and Pdrum = 121.5 kPa. For these conditions and a feed flow rate of 800 kg moles/hr, find the dimensions of a flash drum in feet for the case where htotal/D = 4.0. To calculate vapor densities, assume the vapor is an ideal gas. The molecular weights for 1-propanol and 1-butanol are 60.096 and 74.123, respectively. The estimated liquid densities for 1-propanol and 1-butanol at 110 o C are 718.6 and 729.7 kg/m3, respectively. Instead of calculating Kdrum, use Kdrum = 0.365 ft/s for this separation.