Mass Transfer In case of liquids, the binary diffusivity is proportional to (where, T = temperature) T 1/T T² √T T 1/T T² √T ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient of liquid is 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 None of these Affected more by temperature than that for gases Not affected by the temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 1 0.2 0.4 1 0.2 0.4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm. 1.2 to 1.5 3 to 4 2.5 to 3 5 1.2 to 1.5 3 to 4 2.5 to 3 5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero. Gas phase All of these Interface Liquid phase Gas phase All of these Interface Liquid phase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the None of these Liquid film Gas film Liquid-gas interface None of these Liquid film Gas film Liquid-gas interface ANSWER DOWNLOAD EXAMIANS APP
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