Thermochemistry Flashcards
1
Q
Bond energy
A
The amount of energy required to break a bond in one mole of the molecules in which the bond is formed, measured in kJ.mol^-1
2
Q
Heat of Reaction
A
The net change of chemical potential energy of a system during a chemical reaction, measured in kJ.mol^-1
3
Q
Activated complex
A
A temporary transition state between the reactants and the products
4
Q
Activation Energy
A
The minimum energy required to start a chemical reaction.
5
Q
Exothermic reaction
A
A chemical reaction that transfers chemical potential energy into thermal energy
6
Q
Endothermic reaction
A
A chemical reaction that transfers thermal energy into chemical potential energy
7
Q
Catalyst
A
A substance that increases the rate of reaction but remains unchanged at the end of the reaction
