Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 3 to 4 1.2 to 1.5 5 2.5 to 3 3 to 4 1.2 to 1.5 5 2.5 to 3 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 8 6 10 12 8 6 10 12 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.25 0.7 0.9 0.5 0.25 0.7 0.9 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At what value of reflux ratio, number of theoretical plates in a distillation column is minimum? < 1 ∞ 1 < 1 ∞ 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following equipments is not used for gas dispersion? Perforated sieve tray towers Bubble cap tray towers Spray towers Agitated vessels Perforated sieve tray towers Bubble cap tray towers Spray towers Agitated vessels ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer L/mG is the expression for Absorption factor Brinkman number Slope of operating line in absorber Slope of operating line in stripper Absorption factor Brinkman number Slope of operating line in absorber Slope of operating line in stripper ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS