There are actually 5 skills
in applying Hess’ Law. According to science.uwaterloo and chem.libretexts.org
these are the 5 skills.
- changing the enthalpy of
the reaction whenever the equation changes
- interpreting the Hess’ Law
- applying the principle of
conservation of energy to solve the problem
- sketching an energy diagram
for any related reactions
- and lastly using the
diagram to explain the Hess’ Law.
