EASY
AS and A Level
IMPORTANT
Earn 100

Explain Hess's law.

Important Questions on Lattice Energy
EASY
AS and A Level
IMPORTANT
Suggest why the position of hydrogen atoms in compounds is not usually determined by -ray diffraction.

HARD
AS and A Level
IMPORTANT
Give value for the standard conditions of temperature and pressure.

MEDIUM
AS and A Level
IMPORTANT
Write equation describing the lattic energy of magnesium oxide.

MEDIUM
AS and A Level
IMPORTANT
Write an equation describing the lattice energy of potassium bromide.

MEDIUM
AS and A Level
IMPORTANT
Write an equation describing the lattice energy of sodium sulfide.

HARD
AS and A Level
IMPORTANT
The bond energy of the chlorine molecule is . Why is the standard enthalpy change of atomisation half this value.

MEDIUM
AS and A Level
IMPORTANT
Write equations, including state symbols, that represent the enthalpy change of atomisation of oxygen.

MEDIUM
AS and A Level
IMPORTANT
Write equations, including state symbols, that represent the enthalpy change of atomisation of barium.
