Oceans A2

Question 1

Define Standard Lattice Enthalpy

Answer 1

The enthalpy change when 1 mole of an ionic lattice is formed from its gaseous ions under standard conditions

(Always negative, bonds broken)

Question 2

Define Enthalpy Change of Hydration of ions

Answer 2

The Enthalpy change when 1 mole of aqueous ions is formed from gaseous ions

Question 3

Define Enthalpy change of solution

Answer 3

The Enthalpy change when 1 mole of an ionic substance dissolves in enough solvent to form an INFINITELY DILUTE solution