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how does an increase in pressure of system affect position of equilibrium?
Increasing the pressure will cause the position of equilibrium to shift to the side with fewer moles of gas.
how does an increase in temperature of system affect position of equilibrium?
Increasing the temperature will favour the endothermic reaction, shifting to the side of the endothermic reaction.
how does adding a catalyst to a system affect position of equilibrium?
It only decreases the amount of activation energy needed to complete the reaction.
How does the concentration of the reaction affect the position of the equilibrium?
Increasing the concentration of the reactants will favour the forward reaction that produces the products.
Le Chatelier’’s Principle
If a change is made to a system at equilibrium then the equilibrium will shift to oppose the change.
Dynamic equilibrium
The rate of the forward reaction is the same as the rate of the backwards reaction.
Kc/Kp
= [Products]/[Reactants]
What affects the equilibrium constant?
It only affect by a change in temperature.
If the value of Kc is small
Equilibrium lies to the left favouring the reactants.
If the value of Kc is large
Equilibrium lies to the right favouring the products.