3.1.4 Qualitative Analysis

Question 1

Definition of standard enthalpy change of formation

Answer 1

Of a compound is the enthalpy change when 1 mol of the compound is formed from its elements under standard conditions all reactions and products being in their standards rates

Question 2

Definition of standard enthalpy change of combustion

Answer 2

Of a substance is defined as the enthalpy change that occurs when 1 mol of a substance is combusted completely in oxygen under standard conditions. All reactants and products being in their standard states