C2- states of matter and nanoparticles

What are the properries of solids? (5)

Strong forces of attraction

Particles vibrate over fixed positions

Definite volume/shape

Cant be compressed

Particles are close together (touching)

What are the properries of liquids? (5)

Particles are randomly arranged

As liquids get hotter they move/expand

Wealk forces of attraction

No definite shape

definite VOLUME

What are the properties of gas? (4)

Negilgable/ very weak forces of attraction

randomly arranged in a regular formation

No definite volume

No definite shape (particles constantly move, over eachother)

What happens when a substance melts?

Particles vibrate more weakening forces, eventually have enough energy to break free from positions

What happens when a substance freezes?

When particle cools theres not enough energy to overcome attractions between them

So stronger attractions form

What happens when a substance boils?

Particles get even more energy and move faster which weakens forces

At the boiling point the particles have enough energy to overcome

What happens when a substance condenses?

Particles donte have enough energy to overcome forces between them

The attractions get stronger

What is a nanoparticle? (high sa:v)

A verryyyy small particle

What is one thing a nanoparticle can be used in?

Wound dressings- Silver nanoparticles are antibacterial