lattice enthalpy

Question 1

define lattice enthalpy

Answer 1

the enthalpy change that accompanies the formation of one mole of a solid compound from its constituent gaseous ions.

Question 2

define enthalpy change of formation

Answer 2

the enthalpy change when one mole of a compound is formed from it’s elements under standard conditions

Question 3

define enthalpy change of atomisation

Answer 3

the enthalpy change when one mol of gaseous atoms for from their elements under standard conditions

Question 4

define first ionisation energy

Answer 4

the enthalpy change required to remove 1 electron from each atom in its gaseous atoms to form one mole of 1+ gaseous ions

Question 5

define enthalpy change of solution

Answer 5

the enthalpy change when one mol of a solute dissolves in one mol of a solvent

Question 6

define enthalpy change of hydration

Answer 6

the enthalpy change that accompanies the dissolving of one mol of gaseous ions in water to form one mole of aqueous ions