5 & 23: Chemical Energetics ❎️ Flashcards
standard enthalpy of atomisation
The energy required to produce one mole of gaseous atoms from an element in its standard state, under standard conditions
enthalpy of solution
The enthalpy change when one mole of an ionic solid dissolves in an amount of water large enough so that the dissolved ions are well separated and do not interact with each other
standard enthalpy of formation
The enthalpy change when one mole of a compound is formed from its constituent elements in their standard states, under standard conditions
standard enthalpy of combustion
The enthalpy change when one mole of a substance is completely burned in excess oxygen in its standard state, under standard conditions
standard enthalpy of neutralisation
the enthalpy change when one mole of water is formed from a reaction between an acid and alkali, under standard conditions
first ionisation energy
the amount of energy required to remove one mole of an electron from one mole of gaseous atoms to form one mole of gaseous unipositive ions
first electron affinity
the enthalpy change when one mole of an electron is gained by one mole of gaseous ions to form one mole of gaseous -1 ions
enthalpy of hydration
the enthalpy change when one mole of gaseous ions is dissolved in water and becomes hydrated
bond energy
the enthalpy change when one mole of covalent bonds is broken in the gaseous state
lattice enthalpy of formation
the enthalpy change when one mole of a solid ionic compound is formed from its constituent ions in the gas phase
lattice enthalpy of dissociation
the enthalpy change when one mole of a solid ionic compound is broken into its constituent ions in the gas phase
enthalpy of vaporisation
the enthalpy change when one mole of a liquid turns into a gas
enthalpy of fusion
the enthalpy change when one mole of solid turns into liquid
