Stress affecting equilibrium
Changing Concentration
Adding more reactants or removing products increases the collisions, changing equilibrium.
Changing the temperature
Removing Products
Adding Reactants
Equilibrium constant : The higher the K the more product
Equilibrium position
Endothermic reaction: In an endothermic reaction heat is a reactant and the equilibrium shifts in the direction in which heat is used up (right)
Exothermic reaction: In an exothermic reaction heat is a product and the equilibrium shifts in the direction in which heat is used up (left)
Endothermic reaction
Exothermic reaction
According to Le Chatelier's principle
New equilibrium position
Changing volume & pressure
More products are made to balance
Forward reaction rate increases
More collisions
Adding more reactants adds stress and upsets equilibrium
Increasing heat will result in the decrease of products
Pressure acts as stress on the equilibrium
Lowering heat will result in the decrease of products
Increased # of particles increases pressure
Boyle's law: decreasing volume increases pressure
results in a shift to the right and the production of more products
Adding Products
Adding catalyst to equilibrium position
results in a shift to the left and the conversion of products to reactants
Rahaf Labban 11A
so the gases will go to the side with less particles.
equilibrium shifted to the right
Lowering heat will result in the increase of products
Increasing heat will result in the increase of products
Lowering heat will result in a higher K
Increasing heat K will result in less K
Lowering heat will result in a lower K
Increasing heat will result in a higher K