Hess’s Law Flashcards
1
Q
What does Hess’s Law state?
A
enthalpy change for a chemical reaction is the same, whatever the route is taken from reactants to products
2
Q
What is the equation for enthalpy of formation?
A
(sum of formation products)-(sum of formation reactants)
3
Q
What is the equation for enthalpy of combustion?
A
(sum of combustion reactants)-(sum of combustion products)
4
Q
How are enthalpy of combustion values affected?
A
by incomplete combustion
by evaporation
