Born-Haber cycle

Front

Given the Born-Haber cycle below, which enthalpy change is not represented by steps a-g?

Back

2nd electron affinity of bromine

Front

Equation representing the process for standard enthalpy of atomisation of iodine.

Back

1/2 I₂(s) → I(g)

Front

Which compound shows the greatest percentage difference between lattice enthalpy values obtained from Born–Haber cycles and calculations based on a perfect ionic model? Options: CsF, CsI, LiF, LiI

Back

LiI

Front

Which statement is not correct?

• The first ionisation energy of iron is greater than its second ionisation energy.
• The magnitude of the lattice enthalpy of magnesium oxide is greater than that of barium oxide.
• More ionic character means more difference in lattice enthalpy theoretical and experimental values.

Back

The first ionisation energy of iron is greater than its second ionisation energy.

Front

Which one of the following has the most covalent character? MgF₂, MgBr₂, AlF₃, AlBr₃

Back

AlBr₃

Front

Enthalpy change is represented by steps S?

Back

Enthalpy formation of Calcium bromide

Front

Enthalpy change is represented by steps Y?

Back

enthalpy of atomization of calcium

Front

Enthalpy change is represented by step V?

Back

enthalpy of atomization bromine

Front

What enthalpy change does the number 4 represent? Options: Formation, 1st ionisation energy (Na), 1st electron affinity (Na), Atomisation (Na)

Back

1st ionisation energy (Na)

Front

Lattice Enthalpy

Back

Enthalpy change when one mole of an ionic lattice is formed from gaseous ions