Mass Transfer Mass transfer co-efficient of liquid is None of these Affected more by temperature than that for gases Not affected by the temperature Affected much less by temperature than that for gases None of these Affected more by temperature than that for gases Not affected by the temperature Affected much less by temperature than that for gases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. Degree of ideality Viscosity Neither A nor B Both A & B Degree of ideality Viscosity Neither A nor B Both A & B 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 Depend on saturated boiling point; may increase or decrease Decrease Remains same Increase Depend on saturated boiling point; may increase or decrease Decrease Remains same Increase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is 0.25 0.175 0.4 0.2 0.25 0.175 0.4 0.2 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. 10 8 6 12 10 8 6 12 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________ 1 3 2 4 1 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
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