Mass Transfer Molecular diffusivity of a liquid Increases with temperature Is independent of temperature Decreases with temperature May increase or decrease with temperature Increases with temperature Is independent of temperature Decreases with temperature May increase or decrease with temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal. > 1 1 ? < 1 > 1 1 ? < 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the Diffusion of the solute through the solvent in the pores to the outside of the particle Phase change of the solute as it dissolves in the solvent All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Diffusion of the solute through the solvent in the pores to the outside of the particle Phase change of the solute as it dissolves in the solvent All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption compared to physical absorption has Increased utilisation of stagnant zones of the liquid phase Lower capacity of the solvent for the solute gas None of these Lower adsorption rate Increased utilisation of stagnant zones of the liquid phase Lower capacity of the solvent for the solute gas None of these Lower adsorption rate ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following employs an accessory known as 'drift eliminator' ? Rotating disc contactor Multiple effect evaporator Mechanical draft cooling tower Rotary dryer Rotating disc contactor Multiple effect evaporator Mechanical draft cooling tower Rotary dryer ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A coalescer in a mixer-settler liquid-liquid extraction coloumn Helps in increasing the settling rate of the bubbles All of these Helps in increasing the bubble size entering the settler Comprises of thin bed of substances of extended surface having high porosity Helps in increasing the settling rate of the bubbles All of these Helps in increasing the bubble size entering the settler Comprises of thin bed of substances of extended surface having high porosity ANSWER DOWNLOAD EXAMIANS APP
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