Mass Transfer In case of gases, the binary diffusivity is proportional to (where, P = pressure) √P 1/√P P 1/P √P 1/√P P 1/P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation operation, what is the effect of the temperature of the reflux stream (given below) on the condenser and reboiler loads? Reflux conditions:(i) Reflux stream is completely liquid and is at its bubble point.(ii) Reflux stream is below its bubble point. Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) Both condensor and reboiler loads are higher in case (ii) as compared to case (i) Reboiler load is the same in both the cases but condenser load is higher in case (ii) Condenser and reboiler loads are the same in both the cases Condenser load is the same in both the cases but reboiler load is higher in case (ii) ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure.Nitrobenzene will distill off __________ °C. At > 210.6 At < 100 None of the listed here Between 100 and 210 At > 210.6 At < 100 None of the listed here Between 100 and 210 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same. Constant rate Unsaturated surface Both A & B Neither A nor B Constant rate Unsaturated surface Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%). 15 min 71 min 51 min 94 min 15 min 71 min 51 min 94 min ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is 0.9 0.5 0.25 0.7 0.9 0.5 0.25 0.7 ANSWER DOWNLOAD EXAMIANS APP
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