Unit 4

Question 1

What does KMT stand for?

Answer 1

Kinetic molecular theory

Question 2

What does kinetic refer to?

Answer 2

Motion

Question 3

What ones molecular refer to?

Answer 3

Molecules

Question 4

Describe gases in 3 points

Answer 4

1) molecules are far apart
2) molecules have a lot of energy
3) there are no attractive forces between molecules

Question 5

What does a barometer measure?

Answer 5

Atmospheric pressure

Question 6

What does atmospheric pressure result from?

Answer 6

The collisions of air molecules with objects

Question 7

What are the only two elements that are liquid at room temp?

Answer 7

Bromine and mercury

Question 8

Define IMF’s

Answer 8

Intermolecular forces

- attractive forces between separate molecules

Question 9

Define dipole

Answer 9

Separation of charges

Question 10

What is viscosity

Answer 10

Resistance to flow

Question 11

When will liquids evaporate?

Answer 11

When the molecules on the surface gain enough kinetic energy

Question 12

What’s the solid to liquid equilibrium?

Answer 12

Melting point = freezing point