3.1.8 - Thermodynamics

Question 1

Lattice Dissociation Enthalpy

Answer 1

The energy required to break apart an ionic lattice into its constituent ions in a gaseous state under standard conditions

Question 2

Lattice Formation Enthalpy

Answer 2

The energy required to form an ionic lattice from its constituent ions in a gaseous state under standard conditions

Question 3

Atomisation Enthalpy

Answer 3

The energy required for the formation of a mole of gaseous atoms under standard conditions

Question 4

Enthalpy of Electron Affinity

Answer 4

The enthalpy change when one mole of electrons is added to a mole of gaseous atoms under standard conditions

Question 5

Enthalpy of Solution

Answer 5

The enthalpy change when one mole of ionic solid is dissolved in water to infinite dilution so that the ions no longer interact under standard conditions

Question 6

Enthalpy of Hydration

Answer 6

The enthalpy change when one mole of gaseous ions is dissolved in water to form one mole of aqueous ions under standard conditions

Question 7

Perfect ionic model

Answer 7

All ions are perfectly spherical. Ions don’t display any covalent character

Question 8

Covalent character

Answer 8

Occurs in ions when two joined ions have varying sizes or charges meaning that distribution of charge is not even