Physical Chemistry - Phase Diagram

Front 1

Phase Transition

Back 1

transformation of a thermodynamic system from one phase or rate of matter to another

Front 2

Supercritical Fluid

Back 2

When a pressure and temperature is exerted above a critical point and a distinct liquid or gas phase does not exist

Front 3

Critical point

Back 3

Critical temperature and pressure are together and no phase boundaries exist

Front 4

Critical pressure

Back 4

Is the vapour pressure at critical temperature where the density of pressure and temperature is equal

Front 5

Critical Temperature

Back 5

Temperature at which the surface disappears and there is no longer a boundary between temperature or pressure they are identical

Front 6

Triple Point

Back 6

Where all three phases coexist simultaneously

Front 7

What is unique about the solid liquid line in water?

Back 7

It has a negative gradient rather than a positive since ice has a lower density due to its open crystal structure of H bonds

Front 8

Phase Diagram

Back 8

Map of a substance showing the conditions of temperature and pressure at different phases which are thermodynamically stable

Front 9

Phase boundaries

Back 9

Show the values of P and T where the phases are different on either side and a dynamic equilibrium along the line where the forward and backward reaction are occurring at the same rate

Front 10

All three phases coexist simultaneously

Back 10

Triple point