states of matter Flashcards
define chemistry
study of matter
define matter
made up of particles that occupy space that are all around us and exists in three states
categorise solids (7)
structure - ordered regular repeating vibrate about fixed positions
movement - not free to move and only vibrate
foa - strong
least kinetic energy
least compressibility
fixed and definite shape
most dense bc more particles per unit volume
categorise liquids
structure - less ordered than solids with more spaces between
move less than gases
medium forces of attraction
more kinetic energy than solids
hard to compress
takes shape of container - varies
more dense than gas
categorise gas
particles distributed randomly with the most space between particles
free to move
weak to nil forces of attraction
most kinetic energy
most compressibility
expands to fill container
least dense