3.7- BONDING AND PHYSICAL PROPERTIES Flashcards
What is matter?
anything with mass
What is matter made of?
tiny particles- it is particulate
As the particles in matter are in motion, what do they have?
kinetic energy
What is the arrangement of particles in solids?
regular
What is the arrangement of particles in liquids?
random
What is the arrangement of particles in gases?
random
What is the evidence for solids having a regular arrangement of particles?
crystal shape have straight edges
solids have definite shapes
What is the evidence for liquids having a random arrangement of particles
none direct but a liquid changes shape to fill bottom of its container
What is the evidence for gases having a random arrangement of particles
none direct but a gas will fill its container
What is the spacing like in solids?
close
What is the spacing like in liquids?
close
What is the spacing like in gases?
far apart
What is the evidence for close spacing in solids?
solids are not easily compressed
What is the evidence for close spacing in liquids?
liquids are not easily compressed
What is the evidence for far apart spacing in gases?
gases are easily compressed
What is the movement of particles of solids like?
vibrating about a point
What is the movement of particles of liquids like?
rapid ‘jostling’
What is the movement of particles of gases like?
rapid
What is the evidence for the movement of particles in solids vibrating about a point?
diffusion is very slow
solids expand on heating
What is the evidence for the movement of particles in liquids rapidly ‘jostling’?
diffusion is slow
liquid evaporates
What is the evidence for the movement of particles in gases being rapid?
diffusion is rapid
gases exert pressure
What happens when you first heat a solid and supply energy to the particles?
makes them vibrate more about a fixed position
What does heating a solid and supplying energy tot he particles slightly increase?
slightly increases average distance between particles and so solid expands
What do you do turn a solid into liquid?
supply more energy to it than just heating the solid