Mass Transfer Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality Mixture (to be separated) shows negative deviation from ideality Multicomponent distillation is involved Relative volatility is reasonably constant Mixture (to be separated) shows positive deviation from ideality Mixture (to be separated) shows negative deviation from ideality ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following remains constant during evaporative cooling process with recirculated water supply? None of these Wet bulb temperature Partial pressure of vapour Relative humidity None of these Wet bulb temperature Partial pressure of vapour Relative humidity 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 9 1 8 10 9 1 8 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture. All of these Total pressure Composition Temperature All of these Total pressure Composition Temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or "outgassed" adsorbent to from a definite concentration of adsorbate is called its Differential heat of adsorption Heat of wetting Heat of normal condensation Integral heat of adsorption Differential heat of adsorption Heat of wetting Heat of normal condensation Integral heat of adsorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) 6.89 8.89 10 8.25 6.89 8.89 10 8.25 ANSWER DOWNLOAD EXAMIANS APP