Equilibrium
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19 Terms
Dynamic Equilibrium
The rate of the forward reaction is equal to the rate of the reverse reaction
Equilibrium Constant
The ratio of products to reactants when a chemical system is at equilibrium
When K>1
Products are favoured
When K=1
Approximately equal concentrations of reactants and products
When K<1
Reactants are favoured
Le Chatelier’s Principle
When a chemical system at equilibrium is disturbed by a change of concentration, temperature, or pressure, causing the system to shift
Increasing concentration of product causes…
A shift to the reactants
Decreasing the concentration of products causes…
A shift to the products
Increasing concentration of reactants causes…
A shift to the products
Decreasing the concentration of reactants causes…
A shift to the reactants
When pressure is increased…
Shifts to the reaction with fewer moles of gas
When pressure is decreased…
Shifts to the reaction with more moles of gas
Endothermic
Absorbs energy
Exothermic
Releases energy
Endothermic Reaction
Increases in temperature, products, and K
Exothermic Reaction
Increases in temperature, reactants, and decreases K
When adding a catalyst…
Nothing happens, but helps speed up equilibrium
When adding an Inert Gas at a constant volume…
Nothing happens
When adding an inert gas at a constant pressure…
The system will shift towards the reaction with more moles of gas
Note 
Flashcards (61)