Energetics Flashcards
1
Q
State Hess’s Law
A
The heat energy change is independent of route
2
Q
Is the enthalpy of combustion + or -? Why?
A
Negative
It’s exothermic as the bonds formed in the products > than the bonds broken in the reactants, and therefore heat is leaving the system
3
Q
Is an endothermic reaction a + or - enthalpy value?
A
Positive, as energy is going into the system
4
Q
Are exothermic reactions a + or - enthalpy value?
A
-, as energy leaves the system
