Enthalpies of Formation (6.4.2)

Question 1

• The standard enthalpy change (∆H°) gives the enthalpy change for a reaction performed at standard state and a given temperature.

Answer 1

• The standard enthalpy change (∆H°) gives the enthalpy change for a reaction performed at standard state and a given temperature.

Question 2

• The standard molar enthalpy of formation describes the standard enthalpy change for the formation of one mole of a compound from its elements.

Answer 2

• The standard molar enthalpy of formation describes the standard enthalpy change for the formation of one mole of a compound from its elements.

Question 3

• Hess’s law can be used to calculate the standard enthalpy change for a reaction from the standard molar enthalpies of formation of the reactants and products.

Answer 3

• Hess’s law can be used to calculate the standard enthalpy change for a reaction from the standard molar enthalpies of formation of the reactants and products.