Mass Transfer Schimdt number and Lewis number for pure air at atmospheric conditions are respectively 0 and ≈ 1 >1 and ≈ 1 < 1 and ≈ 1 1 and 0 0 and ≈ 1 >1 and ≈ 1 < 1 and ≈ 1 1 and 0 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 10 9 1 8 10 9 1 8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In paper industry, paper is dried in a __________ dryer. Heated cylinder Conveyor Tunnel Festoon Heated cylinder Conveyor Tunnel Festoon ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Remains same Decrease Depend on saturated boiling point; may increase or decrease Increase Remains same Decrease Depend on saturated boiling point; may increase or decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation. Maximum permissible Total Operating Minimum Maximum permissible Total Operating Minimum ANSWER DOWNLOAD EXAMIANS APP
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