Mass Transfer If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is > 1 1 < 1 > 1 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Steady state equimolal counter diffusion is encountered in All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation All of these All liquid-liquid diffusion systems Absorption of NH₃ from air by water Separation of a binary mixture by distillation All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a distillation column, with increase in the reflux ratio, the heat removed in the cooler Increases Remains unaffected Decreases And the heat required in reboiler decreases Increases Remains unaffected Decreases And the heat required in reboiler decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In which of the following unit operations, the selectivity is an important parameter? Distillation Solvent extraction Absorption None of these Distillation Solvent extraction Absorption None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer __________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction. Bubble Packed Tray Spray Bubble Packed Tray Spray 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 0.079 0.122 0.048 0.152 0.079 0.122 0.048 0.152 ANSWER DOWNLOAD EXAMIANS APP
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