Related Questions

The reaction A (l) R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are
A 1
B 2
C 3
D 0
For multicomponent 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
A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal
A Kinetic energy
B Intermolecular forces of attraction
C Potential energy
D Total energy
In an interphase heat transfer process, the equilibrium state corresponds to equality of temperature in the two phases, while the condition for equilibrium in an interphase mass transfer process is equality of
A Concentrations
B Chemical potentials
C Activity co-efficients
D Mass transfer co-efficients
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
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
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
A Solute concentration
B Temperature
C Both A & B
D Neither A nor B
The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases.
A Potential energy
B Intermolecular forces
C Kinetic energy
D Total energy
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
At __________ point, all the three phases (i.e.solid, liquid and gas) co-exist.
A Eutcetic
B Triple
C Plait
D Critical

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