3.1.4.3 Applications of Hess' law Flashcards
1
Q
What is Hess’ Law?
A
The enthalpy change in a reaction is independent of the route take and depends only on the initial and final states
2
Q
What is the formula for the delta H of a reaction for standard enthalpy change of formation?
A
Delta H (reaction) = Sum of the enthalpy of formation for products - sum of enthalpy of formation for reactants
3
Q
What is the formula for the delta H of a reaction for the standard enthalpy change of combustion?
A
Delta H (reaction) = Sum of enthalpy change of reactants - sum of enthalpy change of products
