Thermochemistry Flashcards
1
Q
Heat of Reaction
A
heat change when the numbers of moles of reactants indicated in the balanced equation for the reaction react completely.
2
Q
Heat of neutralisation
A
heat change when one mole of H+ ions from an acid reacts with one mole of OH- ions from a base.
3
Q
Heat of combustion
A
heat change when one molecule of the substance is completely burned in excess oxygen.
4
Q
Heat formation
A
heat change that takes place when one mole of a compound in its standard state is formed from its elements in their standard states.
5
Q
Hess’s Law
A
heat change for a reaction is the sum of heat changes for all stages.
6
Q
Mercaptans
A
sulphur compounds added to gas to give an odour smell/ to detect leaks.
