Thermochemistry Flashcards
1
Q
Law of Lavoiser and Laplace
A
In a reversible reaction the ΔH for the forward reaction is equal in magnitude but opposite in sign to that of the reverse reaction
2
Q
Heat of reaction
A
The heat change when the number of moles in the given equation / reaction react
3
Q
Hess law
A
The energy change in a reaction is the same regardless of the reaction pathway taken as long as the initial + final reaction is the same
4
Q
Heat of formation
A
The heat change when 1 mole of a compound is formed from its elements in their standard state
5
Q
Heat of combustion
A
ΔHc
The heat change when 1 mole of a substance is completely burned in excess oxygen. All hydrocarbons when completely burned in excess oxygen form CO2 + H2O
