CHEM 1032 Final

Rank the three intermolecular forces discussed in class from strongest to weakest.

Hydrogen bonding > dipole-dipole > London dispersion

Dipole-dipole force

force between permanent dipoles

London dispersion force

force between induced dipoles

Hydrogen bonding

dipole force involving species with –OH,

-NH, and HF bonds

dipole-dipole force (2)

Partial positive charges are attracted to partial negative charges

viscosity

is a measure of the resistance of a liquid to flow

stronger

Higher viscosity liquids experience ____ IMFs

vaporization

liquid —> gas

Enthalpy of ___

Hvap

liquid —> gas

Symbol

Endothermic

liquid —> gas

Endo- or Exo-

condensation

gas —> liquid

Enthalpy of ___

Hcon = -Hvap

gas —> liquid

symbol___

Exothermic

gas —> liquid

Endo- or Exo

fusion

solid —> liquid

Enthalpy of ___

Hfus

solid —> liquid

Symbol___

Endothermic

solid —> liquid

Endo- or Exo-

freezing

liquid —> solid

Enthalpy of ___

Hfrz = -Hfus

liquid —> solid

Symbol___

Exothermic

liquid —> solid

Endo- or Exo-

sublimation

solid —> gas

Enthalpy of ___

Hsub

solid —> gas

Symbol___

Endothermic

solid —> gas

Endo- or Exo-

deposition

gas —> solid

Enthalpy of___

Hdep = -Hsub

gas —> solid

Symbol__

Exothermic

gas —> solid

Endo- or Exo-