States of Matter flashcards
Describe the arrangement of particles in a solid
Fixed position, regular lattice arrangement.
Describe the movement of particles in a gas
Move quickly in random directions
Define sublimation
Solid changing state to a gas
Process of a liquid changing to a gas
Evaporation
Define chemical purity
Something made up of only one type of atom or compound.
What type of substance melts over a range of temperatures?
Mixture
State what happens to the forces between particles during condensation
Become strong enough to hold particles closer together
Predict the state of a substance at 1000C if the melting point is 801C and the boiling point is 1413C
Liquid
Name the process used to separate an insoluble solid from a liquid
Filtration
Name the process used to separate soluble solid from a solution
Crystallisation
Name the process used to seperate a mixture of soluble substances and identify them
Chromatography
Name the two phases of chromatography
Mobile phase and stationary phase
Equation for calculating RF values
distance travelled by solute/ distance travelled by solvent
What is potable water?
Water that is fit to drink
How can you get potable water from sea water?
Distillation or reverse osmosis
During fractional distillation which liquid will evaporate first?
Liquid with lowest boiling point
Why do we tend not to use the distillation of seawater to obtain potable water in the UK?
Requires a lot of energy so it is expensive
3 stages of water purification
Filtration, Sedimentation and Chlorination
State process of liquid changing to solid
Freezing
Name the process used to separate a solvent from a solution
Distillation
