Thermodynamics

Question 1

Define enthalpy of formation

Answer 1

Enthalpy change when 1 mole of a compound is formed from its elements under standard conditions

Question 2

Ionisation enthalpy of an element

Answer 2

Amount of energy required to remove an electron from a gaseous atom of an element to form a gaseous ion under standard conditions

Question 3

Enthalpy change if atomisation

Answer 3

Enthalpy change when 1 mole of gaseous atoms is formed from its element under standard conditions

Question 4

Define standard enthalpy of combustion

Answer 4

Enthalpy chnage when 1 mole of substance reacts with oxygen under standard conditions