energetics Flashcards
1
Q
enthalpy change
A
the heat energy change of a process measured under conditions of constant pressure
2
Q
hess’ law
A
in a reaction, the total energy change is independent the the route taken from reactants to products.
3
Q
standard enthalpy change
A
refers to the heat energy changes under standard conditions of temp and pressure * 298K and 100KPa
4
Q
standard enthalpy of formation
A
enthalpy change which occurs when ONE MOLE of a COMPOUND is formed from its ELEMENTS, in their STANDARD STATES at 298K and 100KPa
