Multiphase Equilibrium, Phase Diagrams and Phase Rules

This quiz contains multiple-choice problems on phase diagrams and rules, saturation, condensation, vaporization and two-component liquid systems.

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The representation of a compound’s different phases in two or three-dimensional graphs is called

Block diagram

Equilibrium diagram

Phase diagram

None of the above

A non-condensable gas is found

Above the critical point

Below the critical point

On the critical point

None of the above

Which of the following is an incorrect statement regarding the phase diagram?

Phase diagram are based on equilibrium conditions

For phase equilibrium, it is assumed that the phase doesn`t remain invariant

Phase diagrams enable to view the properties of two or more phases as a function of temperature, pressure and other variable

None of the above

The one P-T-V combination at which solid, liquid and vapour are in equilibrium is called

Critical point

Triple point

Saturation point

None of the above

If the vapour and liquid of a pure component are in equilibrium, the equilibrium pressure is called

Partial pressure

Vapour pressure

Liquid pressure

None of the above

There is only __ pressure at a given temperature where the vapour and liquid phases may exist in equilibrium.

Three

Two

One

None of the above

The change of phase from liquid to vapour is called

Boiling

Melting

Condensation

None of the above

__ is the temperature at which a liquid just starts to vaporize.

Critical point

Bubble point

Triple point

Saturation point

Which of the following is an incorrect statement regarding condensation?

It is the change of phase from vapour to liquid

It occurs at constant temperature and pressure

The process appears as a point in in a P-T diagram

All of the above

The change of phase from liquid to vapour is called

Condensation

Evaporation

Sublimation

None of the above

Boiling occurs at __ temperature and __ pressure; the process appears as a point in the __ diagram.

Constant, constant, P-T

Variable, constant, P-T

Constant, variable, V-T

Variable, variable, V-T

The change of phase from liquid to solid is

Sublimation

Evaporation

Freezing

None of the above

The temperature at which liquids start to boil at the standard atmospheric pressure is

Normal boiling point

Normal melting point

Normal freezing point

None of the above

The temperature at which solids melt at 1 atm is called

Normal boiling point

Normal melting point

Normal freezing point

None of the above

Quiz/Test Summary
Title: Multiphase Equilibrium, Phase Diagrams and Phase Rules
Questions: 14
Contributed by:
Ivan