. . This problem has to do with the recovery of methanol from a gaseous stream by absorption into water in a tray tower (the gas solvent does not absorb). The mass flow rates at the bottom, densities, and surface tension are as follows: Gas stream: 2.1 [kg/s); 1.7 [kg/m3) Liquid stream: 0.7 [kg/s): 990 [kg/m3); 0.065 [N/m] Other - Water density: 1,000 [kg/m]: Reference surface tension: 0.02 [N/m] Tray data are as follows: Tray spacing of 60 (cm); weir height of 4 (cm); tray (metal) thickness: 2.5 [mm] Tray layout: Hole diameter of 5 (mm) in an equilateral triangular pitch of 12 (mm) Other data: Foaming factor of o.90; flooding approach of 70% . Requirements: Please, select the best answer for the following statements: 1. The surface tension factor is: 2. The area factor (FX) is: 3. The constant Cp, in (m/s), is: 4. The empirical constant C, in [m/s], is: . 5. The superficial gas velocity at flooding, in [m/s], is: 6. The column diameter, in (m), is