5.2.1 Lattice Enthalpy

Question 1

Lattice Enthalpy

Answer 1

Enthalpy change that accompanies the formation of one mole of an ionic compound from its gaseous ions under standard conditions.

Question 2

Standard Enthalpy Change of Atomisation

Answer 2

Enthalpy change that takes place for the formation of one mole of gaseous atoms from the element in its standard state under standard conditions.

Question 3

Standard enthalpy change of solution

Answer 3

Enthalpy change that takes place when one mole of a solute dissolves in a solvent.
If the solvent is water, the ions from the ionic lattice finish up surrounded with water molecules as aqueous ions.

Question 4

Enthalpy change of hydration

Answer 4

Enthalpy change that accompanies the dissolving of gaseous ions in water to form one mole of aqueous ions.

Question 5

Ionic lattice breaking up

Answer 5

Opposite energy change from lattice energy