In case of a solution (not of a solid in a liquid), whose total volume is more than the sum of volumes of its components in their pure states, solubility is__________________?

Related Mcqs:

1. In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is__________________?

   A. Independent of temperature
   B. Increases with rise in pressure
   C. Increased with decrease in pressure
   D. Unchanged with pressure changes

2. “The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes”. This is the _____________ law?

   A. Dalton’s
   B. Amagat’s
   C. Gay-Lussac’s
   D. Avogadro’s

3. “The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?

   A. Raoult’s
   B. Henry’s
   C. Amagat’s
   D. None of these

4. Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?

   A. Carbonate (monohydrate)
   B. Chloride
   C. Thiosulphate
   D. Bisulphite

5. If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as__________________?

   A. Solubility increases as temperature increases
   B. Solubility increases as temperature decreases
   C. Solubility is independent of temperature
   D. Solubility increases or decreases with temperature depending on the Gibbs free energy change
   of solution

6. For most salts, the solubility increases with rise in temperature, but the solubility of _______________ is nearly independent of temperature rise?

   A. Sodium chloride
   B. Sodium carbonate monohydrate
   C. Anhydrous sodium sulphate
   D. Hypo

7. “The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture”. This is__________________?

   A. The statement as per Gibbs-Helmholtz
   B. Called Lewis-Randall rule
   C. Henry’s law
   D. None of these

8. 80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4 .10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution is_________________?

   A. 0.00
   B. 0.18
   C. 0.24
   D. 1.00

9. If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in____________________?

   A. Volume
   B. Enthalpy
   C. Both A. & B
   D. Neither A. nor B

10. The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour________________?

    A. Measures the elevation in boiling point
    B. Is not dependent on the temperature
    C. Is a function of the liquid phase composition
    D. Measures the depression in freezing point