Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 600 0.24 3.97 1 600 0.24 3.97 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Stage efficiency in a leaching process depends on the Vapour pressure of the solution Both A & B Time of contact between the solid and the solution Rate of diffusion of the solute through the solid and into the liquid Vapour pressure of the solution Both A & B Time of contact between the solid and the solution Rate of diffusion of the solute through the solid and into the liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The vapour pressure exerted by the moisture contained in a wet solid depends upon the Temperature Nature of the solid All of these Nature of the moisture Temperature Nature of the solid All of these Nature of the moisture ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Mass diffusivity to momentum diffusivity None of these Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity None of these Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the amount of the steam used in steam distillation is increased, the temperature of distillation Decreases Remains unchanged Depends on relative volatility Increases Decreases Remains unchanged Depends on relative volatility Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The minimum number of theoretical plates is required for achieving a given separation in distillation column with Total reflux No reflux Minimum reflux ratio Zero reflux ratio Total reflux No reflux Minimum reflux ratio Zero reflux ratio ANSWER DOWNLOAD EXAMIANS APP
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