Mass Transfer

611.With increase in temperature, the mutual solubility of two liquids

1. Increases
2. Decreases
3. Remains unchanged
4. Decreases exponentially

View answer

612.With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system).

1. Increases
2. Decreases
3. Remain unaffected
4. Increases Linearly

View answer

613.With increase in temperature, the rate of leaching increases, because the

1. Diffusivity of solute increases
2. Viscosity of solvent decreases
3. Thermal conductivity of solute increases
4. None of these

View answer

614.With increase in temperature, the solubility of gases in liquids, at fixed pressure

1. Increases
2. Decreases
3. Remain same
4. Either (A) or (B), depends on the system

View answer

615.With increase in the concentration of the adsorbate, the integral heat of adsorption

1. Increases
2. Decreases
3. Remains unchanged
4. May increase or decrease; depends on the type of adsorbate

View answer

616.With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop

1. Decreases
2. Remains unchanged
3. Increases
4. Decreases exponentially

View answer

617.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.

1. Increases
2. Decreases
3. Remain same
4. Increases linearly

View answer

618.With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux

1. Increases
2. Decreases
3. Remain same
4. May increase or decrease; depends on system

View answer