Mass Transfer As per Gilliland's equation, the diffusivity is All of these Directly proportional to 'T1.5' Dependent on the molecular volume & molecular weight of components Inversely proportional to 'P' All of these Directly proportional to 'T1.5' Dependent on the molecular volume & molecular weight of components Inversely proportional to 'P' ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Priming in a distillation column Is desirable from point efficiency consideration Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Reduces the overall pressure drop Is desirable from point efficiency consideration Is characterised by the presence of foam throughout the space between trays Results from very low gas velocity Reduces the overall pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 0.24 600 1 3.97 0.24 600 1 3.97 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In a moderately sized packed absorption tower, channeling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter < 6:1 > 4 :1 > 8:1 < 8 : 1 < 6:1 > 4 :1 > 8:1 < 8 : 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption. Always higher than Dependent on the system; can be either lower or higher than Same as Always lower than Always higher than Dependent on the system; can be either lower or higher than Same as Always lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Make up water is required in a cooling tower to replace the water lost by Drift Evaporation Blowdown and leakage All of these Drift Evaporation Blowdown and leakage All of these ANSWER DOWNLOAD EXAMIANS APP
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