Liquids And Solids

Question 0

What is the difference between intramolecular vs intermolecular forces?

Answer 0

Intramolecular forces are ones within an atom and molecule.

Intermolecular forces are ones that are between different molecules or particles.

Question 1

What does the kinetic molecular theory say about IMFs between gas particles?

Answer 1

There are no significant intermolecular forces between gas particles as the gas particles are so far apart as to render IMFs negligible.

Question 2

Give three examples of intramolecular forces.

Answer 2

Ionic
Covalent
Metallic

Question 3

Give three examples of intermolecular forces.

Answer 3

Dipole dipole
London dispersion
Hydrogen bonds

Question 4

Describe London Dispersion Forces

Answer 4

Weakest IMF
Exists between non-polar molecules
The larger the molecule, the larger the dispersion force because larger atoms have a greater tendency for temporary dipoles as the electrons are farther away from the nucleus

Question 5

Describe dipole-dipole forces

Answer 5

Stronger than dispersion forces

Exists between polar molecules

Question 6

Hydrogen bond

Answer 6

Not an actual bond
Strongest IMF but still weaker than actual bonds
Exists between:
H-N
H-O
H-F

Question 7

What is the major difference between liquids and gases?

Answer 7

The distance between the particles.

Question 8

Define cohesion

Answer 8

Force of attraction between identical molecules

Question 9

Define adhesion

Answer 9

Force of attraction between difference molecules