enthalpy changes Flashcards
ΔH⦵r
the enthalpy change that occurs in a reaction in the molar quantities shown in the chemical equation under standard conditions with all reactants and products in their standard state
ΔH⦵f
the enthalpy change that occurs when 1 moles of a compound is formed from its elements under their standard conditions
ΔH⦵c
the enthalpy change that occurs when 1 moles of a substance reacts completely with oxygen under standard conditions
ΔH⦵neut
the enthalpy change that occurs when an acid and base react to produce 1 mole of water under standard conditions
average bond enthalpy
The amount of energy required to break one mole of bonds of a particular type between two atoms in gaseous state