Mass Transfer The Kundsen diffusivity is proportional to (where, T = absolute temperature) T √T T² T⁴ T √T T² T⁴ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is 0.048 0.152 0.079 0.122 0.048 0.152 0.079 0.122 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C. 27.3 21.7 18.7 20 27.3 21.7 18.7 20 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the Pressure drop in the equipment will be very high Viscosity variation of the fluids may cause channeling/flooding Packing may be crushed due to thermal expansion/contraction of the components of the equipments None of these Pressure drop in the equipment will be very high Viscosity variation of the fluids may cause channeling/flooding Packing may be crushed due to thermal expansion/contraction of the components of the equipments None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, An azeotrope may be formed during distillation Use high pressure distillation Use molecular distillation Use steam distillation An azeotrope may be formed during distillation Use high pressure distillation Use molecular distillation Use steam distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in None of these Greater degree of separation with a fixed number of trays Increased reflux ratio Increased reboiler load None of these Greater degree of separation with a fixed number of trays Increased reflux ratio Increased reboiler load ANSWER DOWNLOAD EXAMIANS APP
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