5.5 Born Haber Cycles

Question 1

What is the first ionisation energy?

Answer 1

1 electron is removed from each atom in 1 mole of gaseous atoms. Endothermic.

Question 2

What is the second ionisation energy?

Answer 2

2 electrons removed form each atom in 1 mole of gaseous atoms. Endothermic.

Question 3

What is the enthalpy change of atomisation?

Answer 3

1 mole of gaseous atoms is formed from an element. Endothermic.

Question 4

What is the first electron affinity?

Answer 4

1 electron is added to each atom in 1 mole of gaseous atoms. Exothermic.

Question 5

What is the second electron affinity?

Answer 5

2 electrons are added to each atom in 1 mole of gaseous atoms. Endothermic.

Question 6

What is the lattice enthalpy?

Answer 6

1 mole of ionic compounds is broken apart into its constituent gaseous ions. Endothermic.

Question 7

What is important to add in to each definition?

Answer 7

1 mole and under standard conditions.

Question 8

What is a born haber cycle?

Answer 8

An enthalpy live diagram that breaks down the formation of an ionic compound into a series of simpler steps.