Solid,Liquid, Gas

Question 1

Characteristics of a solid

Answer 1

Particles closely packed in a fixed lattice
Vibrate in place, held by strong forces
Fixed shape & volume,

Question 2

Pt2 characteristics of solid

Answer 2

incompressible
Low kinetic energy

Question 3

Characteristics of a liquid

Answer 3

Particles close together, random arrangement

Slide past each other, weaker forces than solids

Fixed volume, takes shape of container, incompressible

Question 4

PT2 characteristic of liquid

Answer 4

Medium kinetic energy

Question 5

What is a gas?

Answer 5

Particles far apart, random motion
Very weak forces of attraction
Takes shape & volume of container, compressible

Question 6

pt2 characteristic of gas

Answer 6

High kinetic energy

Question 7

in kenetic particle theory describes what happen in melting

Answer 7

Particles gain kinetic energy, vibrate faster

Forces weaken, particles slide past each other

Occurs at melting point

Question 8

In kenetic particle theory describes what happen in freezing

Answer 8

Particles lose kinetic energy, slow down

Forces strengthen, particles lock into lattice

Occurs at freezing point

Question 9

In kenetic particle theory describes what happen in boiling

Answer 9

Particles gain kinetic energy, move rapidly

Forces break, random motion increases

Occurs at boiling point

Gas pressure = atmospheric pressure

Question 10

In kenetic particle theory describes what happen in evaportation

Answer 10

Particles gain enough kinetic energy to escape from surface

Can occur at any temperature below boiling point

Happens gradually

Answer 11

Particles lose kinetic energy, slow down
Forces strengthen, particles come closer

Question 12

describe in kinetic theory sublimation

Answer 12

Particles gain enough kinetic energy to overcome forces
Move directly from solid lattice → gas

Question 13

describe in kinetic theory in depostion

Answer 13

Particles lose kinetic energy rapidly
Forces increase, particles arrange directly into solid lattice

Question 14

Boiling vs evaportation

Answer 14

Boiling happen throughout a liquid while evaporation only happens on the surface

Boiling happen at a specfic tempreture evaporation happen at any tempreture below the boiling point

Boiling happen faster than evaporation( happen gradulally)