Thermochemistry Vocab Flashcards
Chemical potential energy
The energy stored in chemical bonds
Thermochemistry
The study of energy changes that occur during chemical reactions and changes in state
Heat
Energy that transfers from one object to another
Heat capacity
The amount of hear needed to increase the temp. object
Activation energy
Minimum energy that colliding particles must have in order to react
Activated complex
An unstable arrangement of atoms that forms for a moment at the peak of the activation-energy barrier
Inhibitor
A substance that interferes with the action of a catalyst
1st law of thermodynamics
Energy of the universe is constant
2nd law of thermodynamics
In any spontaneous process, there is always an increase in entropy in the universe
3rd law of thermodynamics
Entropy of a perfect crystal at zero Kelvin is 0
Temperature of reaction
⬆️ # of collisions ⬆️ eff. (Harder)
Concentration of reaction
⬆️ # of coll
Surface area/ particle size in reaction
⬆️ coll.
Catalyst in reaction
⬆️ eff ( right orientation)
