5 Energetics Flashcards
1
Q
Standard state
A
Standard state at a specified temperature is its pure form at 1 bar and 1 mol dm3 (for solutions)
2
Q
Standard enthalpy of formation
A
Energy change when one mole of a substance is formed from its constituent elements in standard states under standard conditions
3
Q
Standard enthalpy change of combustion
A
Energy released when one mole of a pure substance is completely burnt in excess oxygen under standard conditions
(exo)
4
Q
Standard Enthalpy change of neutralisation
A
Energy released when one mole of water is formed in neutralisation reaction between an acid and base under standard conditions
5
Q
Bond energy
A
Average required to break one mole of a covalent bond between two atoms in gaseous state
