A. 1
B. 2
C. 3
D. 4
Related Mcqs:
- Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is__________________?
A. 1
B. 2
C. 3
D. 4 - 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 - Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream ?
A. Sedimentation tank
B. Circular clarifier
C. Mechanical flocculation
D. Chemical coagulation - Solid and liquid phases of a substance are in equilibrium at the____________________?
A. Critical temperature
B. Melting point
C. Freezing point
D. Both B. and C - For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________?
A. x
B. x + 1
C. x + 2
D. x + 3 - Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the ____________ equation?
A. Gibbs-Duhem
B. Maxwell’s
C. Clapeyron
D. None of these - 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 - 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 - 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 - The temperature at which both liquid and gas phases are identical, is called the _____________ point?
A. Critical
B. Triple
C. Freezing
D. Boiling
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