Thermochem Flashcards
Bond Energy
The amount of energy to break a bond in one mole of the molecules in which the bond is formed, measured in KJ.mol^-1
Heat of Reaction
The net change of chemical potential energy of a system during a chemical reaction, measured in KJ.mol^-1
Activated Complex
A temporary transition state betweenthe reactants and the products
Activation Energy
The minimum energy required to start a chemical reaction
Exothermic Reaction
A chemical reaction that trancefes chemical potential energy into thermal energy
Endothermic Reaction
A chemical reaction that tracefers thermal energy into chemical potential energy
Catalyst
A substance that increases the rate of reaction but remians unchanged at the end of the reaction
Reaction rate
The change in concentration per unit time of either a reactant or product
