Mass Transfer Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for All of these Constant molal overflow Constant relative volatility Total reflux All of these Constant molal overflow Constant relative volatility Total reflux ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 2.5 to 3 5 3 to 4 1.2 to 1.5 2.5 to 3 5 3 to 4 1.2 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molality is defined as the number of gm moles of solute per __________ of solvent. m³ Litre Gm Kg m³ Litre Gm Kg ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower) FG/(G.a) F/(FG.a) (G.a)/FG L/(FG.G) FG/(G.a) F/(FG.a) (G.a)/FG L/(FG.G) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a distillation column operating at minimum reflux, the Concentration of liquid and vapour leaving a plate will be same Reflux ratio will be maximum Number of plates required will be maximum None of these Concentration of liquid and vapour leaving a plate will be same Reflux ratio will be maximum Number of plates required will be maximum None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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