Related Mcqs:

1. The change in enthalpy per unit weight of adsorbed gas when adsorbed on gas free or “outgassed” adsorbent to from a definite concentration of adsorbate is called its_____________________?

   A. Integral heat of adsorption
   B. Heat of wetting
   C. Differential heat of adsorption
   D. Heat of normal condensation

2. With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent ?

   A. Increases
   B. Decreases
   C. Remain same
   D. Either A. or B., depends on the system

3. With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent______________________?

   A. Increases
   B. Decreases
   C. Remain same
   D. Either A. or B., depends on the system

4. At a given equilibrium pressure, with increase in temperature, the concentration of adsorbed gas on solid adsorbent __________________?

   A. Increases
   B. Decreases
   C. Remains unchanged
   D. Increases exponentially

5. If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that___________________?

   A. The system comprises of partially miscible liquids
   B. The system comprises of miscible liquids
   C. The system comprises of an azeotrope
   D. On heating, a vapor phase will appear; while on cooling, a solid phase will appear

6. In a distillation column, with increase in the reflux ratio, the heat removed in the cooler ______________________?

   A. Increases
   B. Decreases
   C. Remains unaffected
   D. And the heat required in reboiler decreases

7. Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the________________?

   A. Latent heat
   B. Humid heat
   C. Specific heat
   D. Sensible heat

8. In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is_________________?

   A. Equal to the heat of formation of surface compound
   B. Equal to the heat of wetting
   C. Zero
   D. Called integral heat of adsorption

9. In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is__________________?

   A. Equal to the heat of formation of surface compound
   B. Equal to the heat of wetting
   C. Zero
   D. Called integral heat of adsorption

10. Heat sensitive materials with very high latent heat of vaporisation may be economically separated using__________________?

    A. Liquid extraction
    B. Distillation
    C. Evaporation
    D. Absorption