The temperature at which both liquid and gas phases are identical, is called the _____________ point?

Related Mcqs:

1. For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the _______________ of each component must be same in all phases?

   A. Chemical potential
   B. Fugacity
   C. Both A. and B
   D. Neither A. nor B

2. “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

3. At ____________ point, all the three phases (i.e. solid, liquid and gas) co-exist ?

   A. Eutectic
   B. Triple
   C. Plait
   D. Critical

4. The point at which all the three (solid, liquid and gas) phases co-exist, is known as the ____________ point?

   A. Freezing
   B. Triple
   C. Boiling
   D. Boyle

5. When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is__________________?

   A. More in vapour phase
   B. More in liquid phase
   C. Same in both the phases
   D. Replaced by chemical potential which is more in vapour phase

6. A liquid under pressure greater than its vapour pressure for the temperature involved is called a _____________ liquid?

   A. Sub-cooled
   B. Saturated
   C. Non-solidifiable
   D. None of these

7. At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?

   A. μ° + RT ln f
   B. μ°+ R ln f
   C. μ° + T ln f
   D. μ° + R/T ln f

8. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?

   A. Critical
   B. Boyle
   C. Inversion
   D. Reduced

9. While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is _______________?

   A. Infinity
   B. Unity
   C. Constant
   D. Negative

10. The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?

    A. V1/V2
    B. V2/V1
    C. V1 – V2
    D. V1.V2