Mass Transfer Molecular diffusivity of a liquid Is independent of temperature May increase or decrease with temperature Increases with temperature Decreases with temperature Is independent of temperature May increase or decrease with temperature Increases with temperature Decreases with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number (Le) is St x Sh Sh x Pr Sc x Pr Pr x St St x Sh Sh x Pr Sc x Pr Pr x St ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________ , if the conduction and radiation through the solid are negligible. Increases linearly Increases Remains same Decreases Increases linearly Increases Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At a fixed total pressure, humidity depends only on the Partial pressure of vapour in the mixture Heat capacity of the vapour None of these Density of the vapour Partial pressure of vapour in the mixture Heat capacity of the vapour None of these Density of the vapour ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Entrainer used in azeotropic distillation should Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency Have high latent heat of vaporisation Form a new azeotrope of low relative volatility with one of the constituents of the mixture Form a low boiling azeotrope with one of the constituents of the mixture Have high viscosity to provide high tray efficiency Have high latent heat of vaporisation Form a new azeotrope of low relative volatility with one of the constituents of the mixture 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 mass dif-fusivity Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity None of these Momentum diffusivity to the mass dif-fusivity Momentum diffusivity to the thermal diffusivity Thermal diffusivity to the mass diffusivity ANSWER DOWNLOAD EXAMIANS APP