BRAINCAKEChanging Temperature
The direction in which the equilibrium shifts depends on the sign of ΔH and whether or not the reaction is endothermic or exothermic.
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Key terms in this lesson
- Exothermic
- Describes a reaction in which energy is transferred from the system to the surroundings, so the enthalpy change is negative.
- Endothermic
- Describes a reaction in which energy is transferred from the surroundings to the system, so the enthalpy change is positive.
- Position of equilibrium
- The relative amounts of reactants and products present when a reversible reaction has reached equilibrium.
More in Equilibria
- Chemical Equilibria
- Le Chatelier's Principle
- Changing Concentrations
- Changing Pressure
- Catalysts
- Equilibrium Reactions in Industry
- Ammonia
- Ethanol
All 20 lessons in Equilibria · All AQA AS-level Chemistry topics