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