Kinetic particle theory

Question 1

The kinetic particle theory of matter

Answer 1

Matter consists of small particles called molecules.

The molecules are always in random motion.

The molecules attract one another with a force which decreases as the distance between them increases.

Question 2

Describe the properties of particles in solids, liquids, and gasses from kinetic particel theory of matter

Answer 2

Solids - molecules close packed together slightly moving. definite shape and volume

liquids - far apart and moving past each other - fill their container

Gases- Very spread apart moving at high speed colliding - completely fill their container

Question 3

Melting

Answer 3

solid turns into a liquid.

Question 4

Condensation

Answer 4

gas turns into a liquid.

Question 5

Evaporation

Answer 5

liquid turns into a gas.

Question 6

Sublimation

Answer 6

solid turns into a gas.

Question 7

Freezing

Answer 7

liquid turns into a solid.

Question 8

Deposition

Answer 8

Gas turns into a solid.

Question 9

link uses of a material to its properties
Thermal

Answer 9

Thermal conductivity is a substances ability to transfer heat.

Nichrome allows rapid heat transfer so used in hairdryers and toasters.

Question 10

link uses of a material to its properties
boiling point

Question 11

link uses of a material to its properties
elect

Answer 11

ability of a material to conduct an electrical charge is called electrical conducivitu

copper wire

Question 12

Boiling

Answer 12

temp at which a liquid becomes a gas

sodium gets uses a coolant in power stations as it has a high boiling point so it can withstand the temp as it absorbs heat transferring it to a generator.

Question 13

Melting

Answer 13

when a solid becomes liquid

tin, lead, zinc get used as wires for elect fuses so when a high temp heats teh wire it melts preventing the high temp from damaging the device and causing a dire.