Mass Transfer Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for Total reflux All of these Constant relative volatility Constant molal overflow Total reflux All of these Constant relative volatility Constant molal overflow ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL²/DA √(KL².DA) KL/DA² KL².DA KL²/DA √(KL².DA) KL/DA² KL².DA ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For gas absorption, low viscosity solvents are preferred, because of their Low pumping pressure drop Rapid absorption rates Better flow characteristics All of these Low pumping pressure drop Rapid absorption rates Better flow characteristics All of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture content of a substance when at equilibrium with a given partial pressure of the vapour is called the __________ moisture. Unbound Free Bound Equilibrium Unbound Free Bound Equilibrium ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the None of these Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity Momentum diffusivity to the mass dif-fusivity None of these Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity Momentum diffusivity to the mass dif-fusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is G/L Always < 1 L/G None of these G/L Always < 1 L/G None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS