Mass Transfer According to Poiseuille's law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity) √μ 1/μ μ² μ √μ 1/μ μ² μ 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 Reduces the overall pressure drop Results from very low gas velocity Is desirable from point efficiency consideration Is characterised by the presence of foam throughout the space between trays Reduces the overall pressure drop Results from very low gas velocity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Schimdt number and Lewis number for pure air at atmospheric conditions are respectively < 1 and ≈ 1 0 and ≈ 1 >1 and ≈ 1 1 and 0 < 1 and ≈ 1 0 and ≈ 1 >1 and ≈ 1 1 and 0 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a distillation column operating at minimum reflux, the Reflux ratio will be maximum None of these Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum Reflux ratio will be maximum None of these Concentration of liquid and vapour leaving a plate will be same Number of plates required will be maximum ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Very tall packed towers are divided into series of beds to Reduce liquid hold-up Avoid channelling Reduce the overall pressure drop Avoid flooding Reduce liquid hold-up Avoid channelling Reduce the overall pressure drop Avoid flooding ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is Called integral heat of adsorption Equal to the heat of formation of surface compound Equal to the heat of wetting Zero Called integral heat of adsorption Equal to the heat of formation of surface compound Equal to the heat of wetting Zero ANSWER DOWNLOAD EXAMIANS APP
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