Chapter 3: Particle Model of Matter

flats spots

There are ________ on the heating graph where energy is being transferred but not being used to change the temperature.

random directions

The particles in a gas are constantly moving with ________ and speeds.

SLH

Energy is given in joules, mass in kg and ________ in J /kg.

weaker forces of attraction

Liquids- there are ________ between the particles.

Particle Model

The ________ can explain Density and the three states of matter.

Density

________ is a measure of the compactness of a substance.

Average energy

________ in kinetic stores is related to temperature.

gases theyre

Particles have more energy than in liquids and ________ free to move and at higher speeds.

specific latent heat

For cooling, ________ is the energy released by a change in state.

physical change

A change of state is a(n) ________.

kinetic energy

A change in state occurs if the substance is heated enough- the particles will have enough energy in their ________ stores to break the bonds holding them together.

Specific latent heat

________ is the energy needed to change the state of a 1kg matter.

Density equation

mass / volume

Internal energy

_________is the energy stored by the particles that make up a system

solid to liquid

melting

liquid to solid

freezing

gas to liquid

condensing

liquid to gas

evaporating

solid to gas

sublimating

Constant equals

pressure x volume

energy is given in

joules