Exists in a closed system, where the rates of the forward and reverse reactions are equal and all concentrations remain the same
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Homogeneous equlibrium
All the species present are in the same state
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Le Chatelier's principle
When a system in dynamic equilibrium is subjected to a change, the position of equilibrium will shift to minimise the change
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How an equilibrium of gases responds to an increase in total pressure
Position of equilibrium shifts to decrease pressure by moving to decrease the total number of moles of gas
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How an equilibrium responds to an increase in temperature
An increase in temperature always favours the endothermic reaction, so it shifts in the endothermic direction
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How an equilibrium responds to the addition of a catalyst
Catalysts do not alter the position of equilibrium at all, but they do increase the rate at which it is achieved as both forward and reverse reactions are sped up equally
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In industry, why might a compromise be made to use a lower pressure than is ideal?
High pressures are expensive and can be dangerous
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Other cards in this set
Card 2
Front
All the species present are in the same state
Back
Homogeneous equlibrium
Card 3
Front
When a system in dynamic equilibrium is subjected to a change, the position of equilibrium will shift to minimise the change
Back
Card 4
Front
Position of equilibrium shifts to decrease pressure by moving to decrease the total number of moles of gas
Back
Card 5
Front
An increase in temperature always favours the endothermic reaction, so it shifts in the endothermic direction
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