their standard states.
Heat of fusion (∆Hfus)
Heat    of  fusion  (∆Hfus)
The ∆H  for the conversion  of  a   solid   to  a   liquid.Heat of sublimation (∆Hsub)
Heat    of  sublimation (∆Hsub)
The ∆H  for the conversion  of  a   solid   directly    to  a   gas.Heat of vaporization (∆Hvap)
Heat    of  vaporization    (∆Hvap)
The ∆H  for the conversion  of  a   liquid  to  a   vapor.Heisenberg uncertainty principle
Heisenberg  uncertainty principle
The principle   that    states  that    it  is  impossible  to  simultaneously  determine   with    perfect accuracy
both    the momentum    and position    of  a   particle.
Henry’s law
Henry’s law
The law stating that    the mass    of  a   gas that    dissolves   in  a   solution    is  directly    proportional    to  the
partial pressure    of  the gas above   the solution.
Hess’s law
Hess’s  law
The law stating that    the energy  change  in  an  overall reaction    is  equal   to  the sum of  the energy