Vapour pressure is not affected by_______________?

Related Mcqs:

1. 18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?

   A. 8
   B. 5.1
   C. 6
   D. one/fifty one

2. Vapour pressure of water at 100°C is___________________?

   A. 55 mm Hg
   B. 760 mm Hg
   C. 355 mm Hg
   D. 1489 mm Hg

3. A substance having very high vapour pressure at its melting point on heating will show_______________?

   A. Melting
   B. Sublimation
   C. Decomposition
   D. Condensation

4. The relative lowering of vapour pressure is_____________________?

   A. equal to the mole fraction of solvent
   B. equal to the mole fraction of solute
   C. directly proportional to the mole fraction of solute
   D. both B & C

5. The relative lowering of vapour pressure is directly proportional to molality if the solution is________________?

   A. concentrated
   B. dilute
   C. saturated solution
   D. all of the above

6. When Ammonia is used as a refrigerant in vapour compression cycle?

   A. Cu Tubing used
   B. Steel tubes used
   C. Both a & b
   D. Material does not effect by refrigerant

   Submitted by: Ghulam Murtaza

7. In case of gases Kc is replaced by_______________?

   A. Ka
   B. Kb
   C. Kp
   D. K

8. The value of activation energy is primarily determined by_______________?

   A. Temperature
   B. Effective collision
   C. Concentration of reactants
   D. Chemical nature of reactants and products

9. Concept of Triads was introduced by_______________?

   A. Dobereiner
   B. Newland
   C. Mendeleev
   D. Al-Razi

10. The pressure during the molar heat of fusion is kept________________?

    A. 0 atmosphere
    B. one atmosphere
    C. 2 atmosphere
    D. 10 atmosphere