Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ____________ solutions?

Related Mcqs:

1. If an ideal solution is formed by mixing two pure liquids in any proportion, then the ___________________ of mixing is zero?

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

2. Entropy change of mixing two liquid substances depends upon the_________________?

   A. Molar concentration
   B. Quantity (i.e. number of moles)
   C. Both A. and B
   D. Neither A. nor B

3. Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of________________?

   A. Mixing
   B. Adsorption
   C. Wetting
   D. Complete wetting

4. Free energy change of mixing two liquid substances is a function of the__________________?

   A. Concentration of the constituents only
   B. Quantities of the constituents only
   C. Temperature only
   D. All A, B. and C

5. In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

   A. More
   B. Less
   C. Same
   D. Unpredictable; depends on the particular reaction

6. 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__________________?

   A. Independent of the temperature
   B. Increased with the increase in pressure
   C. Decreased with the increase in pressure
   D. Unchanged by the pressure change

7. “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

8. Heat of reaction at constant volume is identified with _____________ change?

   A. Enthalpy
   B. Internal energy
   C. Either A. or B
   D. Neither A. nor B

9. Solutions which distil without change in composition are called________________?

   A. Ideal
   B. Saturated
   C. Supersaturated
   D. Azeotropic

10. With increase in the solute concentration, the specific heat of aqueous solutions _____________________?

    A. Increases
    B. Decreases
    C. Remains unchanged
    D. Either A. or B.; depends on the type of solution