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# Phase Diagrams

### cava s2d13 303 1.14 Phase Diagrams

States of matter depend on the internal [...] of atoms and molecules. States of matter depend on the internal energy of atoms and molecules.
liquid -> gas = [...] liquid -> gas = evaporation
gas -> liquid = [...] gas -> liquid = condensation
liquid -> solid = [...] (aka fusion) liquid -> solid = freezing (aka fusion)
solid -> liquid = [...] solid -> liquid = melting
solid -> gas = [...] solid -> gas = sublimation
gas -> solid = [...] gas -> solid = deposition
Phase changes are accompanied by [...] changes. Phase changes are accompanied by energy changes.
When matter changes phase (or state), there is an internal energy change, but NOT a [...] change. When matter changes phase (or state), there is an internal energy change, but NOT a temperature change.
Intermolecular forces are the forces that pull molecules [...]. Intermolecular forces are the forces that pull molecules together.
Kinetic energy pulls molecules [...] each other. Kinetic energy pulls molecules away from each other.
Phase diagrams depict the effects of temperature and pressure on [...]. Phase diagrams depict the effects of temperature and pressure on phase changes.
The three curves of a phase diagram intersect at the '[...] point'. The three curves of a phase diagram intersect at the 'triple point'.
The triple point is the temperature and pressure at which all three [...] of matter exist. The triple point is the temperature and pressure at which all three phases of matter exist.
The lines on a phase diagram represent where one [...] ends and another begins. The lines on a phase diagram represent where one phase ends and another begins.
The curves of a phase diagram end at the [...] point. The curves of a phase diagram end at the critical point.
Above the temperature and pressure of the [...] point, you really can't tell the difference between a liquid and a gas. Above the temperature and pressure of the critical point, you really can't tell the difference between a liquid and a gas.
Phase diagrams allow you to predict what [...] a substance will be in at a given temperature and pressure. Phase diagrams allow you to predict what state/phase a substance will be in at a given temperature and pressure.
liquid -> solid = freezing (aka [...]) liquid -> solid = freezing (aka fusion)
Phase diagrams allow you to predict what state/phase a substance will be in at a given [...] and pressure. Phase diagrams allow you to predict what state/phase a substance will be in at a given temperature and pressure.
Phase diagrams allow you to predict what state/phase a substance will be in at a given temperature and [...]. Phase diagrams allow you to predict what state/phase a substance will be in at a given temperature and pressure.
Created by: mr.shapard