Energetics II Flashcards
(12 cards)
Lattice energy can be either
Formation or dissociation
What is the definition of the standard enthaply of atomisation
The enthaply change when 1 mol gaseous atoms is formed from the element in its standard state
What is the definition of the first ionisation energy
The enthaply change when 1 mol of electrons is removed from 1 mol of gaseous atoms, forming 1 mole of gaseous +1 ions
The second ionisation energy definition
The energy required to remove an electron from 1 mol of gaseous +1 ions to form 1 mol of gaseous 2+ ions
First electron affnitity definition
The enthaply change when 1 mole of electrons is added to 1 mol of gaseous atoms, forming 1 mole of gaseous 1- ions
Second electron affinity definition
The enthaply change when an electron is added to 1 mole of gaseous -1 ions, forming 1 mol of gaseous 2- ions
Lattice dissociation enthaply definition
Enthaply change when 1 mol of solid ionic compound is completely dissociated into gaseous ions
Lattice formation energy definition
The enthaply change when 1 mol of solid ionic compound is formed from its gaseous ions
Enthaply of hydration definition
Enthaply change when 1 mol of gaseous ions dissolves in water to form 1 mol of aqueous ions
Enthaply of solution definition
Enthaply change when 1 mol of ionic solid dissolves in enough water to produce an infinitely dilute solution
Standard enthaply of formation definition
Enthaply change when 1 mol of a compound formed from its elements in their standard states under standard conditions
Standard enthaply of combustion definition
The enthaply change when 1 mol of substance is completely burned in oxygen under standard conditions
