Mass Transfer In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is S = ∞ S > 1 S = 1 S < 1 S = ∞ S > 1 S = 1 S < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Yes ; if the reflux ratio is maximum Normally not; but is possible if infinite number of plates are put Yes Never Yes ; if the reflux ratio is maximum Normally not; but is possible if infinite number of plates are put Yes Never ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is 2500 1000 1500 2000 2500 1000 1500 2000 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity. Relative Percentage Molal None of these Relative Percentage Molal None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On addition of solute in the solvent, the __________ of the solution decreases. Vapour pressure Both B and C Boiling point Freezing point Vapour pressure Both B and C Boiling point Freezing point ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an Insoluble binary system Binary mixture Pure component Ternary mixture Insoluble binary system Binary mixture Pure component Ternary mixture ANSWER DOWNLOAD EXAMIANS APP
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