Intermolecular Forces

Question 1

Intermolecular forces

Answer 1

Force of attraction between molecules

Question 2

Dipole-dipole forces

Answer 2

Forces between two polar molecules

Question 3

Dipole-induced dipole forces

Answer 3

Forces between polar and non-polar molecules

Question 4

Hydrogen bonding (special dipole-dipole)

Answer 4

Forces between molecules in which hydrogen is covalently bonded to nitrogen, oxygen, or fluorine

Question 5

Ion-dipole forces

Answer 5

Forces between ions and polar molecules

Question 6

London forces (mutually induced dipole forces/dispersion)

Answer 6

Forces between non-polar molecules(weakest)

Question 7

Boiling point

Answer 7

The temperature at which vapour pressure of a substance equals atmospheric pressure (the stronger the intermolecular forces the higher the boiling point)

Question 8

Melting point

Answer 8

The temperature at which the solid and liquid phases of a substance are at equlibrium (the stronger the intermolecular forces the higher the boiling point)

Question 9

Vapour pressure

Answer 9

The pressure exerted by a vapour at equlibrium with its liquid in a closed system (the stronger the intermolecular forces the lower the vapour pressure)

Question 10

Solubility

Answer 10

The property of a solid, liquid or gaseous chemical substance(solute) to dissolve in a solid, liquid or gaseous solvent to form a homogeneous solution

Question 11

Solubility

Answer 11

The property of a solid, liquid or gaseous chemical substance(solute) to dissolve in a solid, liquid or gaseous solvent to form a homogeneous solution