Definitions And Terminology Flashcards
Boiling
When a substance changes phase from a liquid to a gas at a fixed temperature. All the particles are involved in boiling.
Evaporation
When a substance changes phase from a liquid to a gas at any temperature. Only the surface particles evaporate.
Boiling point
The temperature at which all the particles in a liquid changes to a gas during heating.
Condensation
When a gas cools down and changes into the liquid phase.
Sublimation
The process during which a substance changes directly from the solid phase into the gas phase.
Pure substance
All the particles in a substance are identical
Impure substance
There are different particles present in a substance.
Mixture
A substance that contains two or more substances that are not chemically combined together.
Filtration
The process used to separate an insoluble solid from a liquid.
Residue
The solid collected on the filter paper after filtration
Solution
A homogenous mixture of a solute and a solvent.
Solute
The solid that dissolves in a liquid.
Solvent
The liquid in which a solid dissolves.
Miscible
When two substances are able to mix (dissolve) with one another.
Immiscible
When two substances cannot mix (dissolve)
