4.4- HESS'S LAW Flashcards
1
Q
What does Hess’s law state?
A
enthalpy change for chemical reaction is same, whatever route taken from reactants to products
2
Q
What is Hess’s law a consequence of?
A
Law of Conservation of Energy
3
Q
What does the Law of Conservation of Energy state?
A
energy can never be created or destroyed
4
Q
What is the enthalpy of formation ΔfH°?
A
enthalpy change when one mole of compound formed from its constituent elements under standard conditions, all reactants + products being in standard states
