Related Questions

A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.
A Saturated
B Supersaturated
C Superheated
D None of these
A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor.
A Saturated
B Superheated
C Unsaturated
D Dry gaseous
The pressure under which liquid and vapor can co-exit at equilibrium is called the __________ vapor pressure.
A Limiting
B Real
C Saturated
D Normal
The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is
A Termed as relative saturation
B Not a function of the composition of gas mixture
C Called percentage saturation
D Not a function of the nature of vapor
If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its
A Bubble point
B Saturation temperature
C Dew point
D Both B and C
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
The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is
A More
B Less
C Some
D Either more or less ; depends on the nature of vapor
The fusion of a crystalline solid at its melting point to form a liquid at the same temperature is accompanied by
A Decrease in enthalpy corresponding to evolution of heat
B Decrease of entropy
C Increase in enthalpy corresponding to absorption of heat
D No change in enthalpy
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.
A Less than
B More than
C Same as
D Very much less
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.
A Less than
B More than
C Equal to
D Either A or B; depends on the solid

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