The Effect of Temperature Changes on Equilibrium (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
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10 questions from this quiz
What does Le Chatelier's Principle state about temperature changes in equilibrium?
What does Le Chatelier's Principle state about temperature changes in equilibrium?
Equilibrium shifts to counteract change
In an exothermic reaction, which direction does equilibrium shift when temperature increases?
In an exothermic reaction, which direction does equilibrium shift when temperature increases?
Left (towards reactants)
What happens to products in an exothermic reaction when temperature decreases?
What happens to products in an exothermic reaction when temperature decreases?
Amount of products increases
In an endothermic reaction, what happens when temperature is increased?
In an endothermic reaction, what happens when temperature is increased?
Equilibrium shifts right, more products
Where does equilibrium shift in an endothermic reaction when temperature decreases?
Where does equilibrium shift in an endothermic reaction when temperature decreases?
Left (towards reactants)
What type of reaction is the formation of ammonia: ( kJ/mol)?
What type of reaction is the formation of ammonia: ( kJ/mol)?
Exothermic
In ammonia formation, what happens to ammonia production when temperature is increased?
In ammonia formation, what happens to ammonia production when temperature is increased?
Ammonia production reduces
Which direction does equilibrium shift in ammonia formation when temperature decreases?
Which direction does equilibrium shift in ammonia formation when temperature decreases?
Right (more ammonia produced)
Which direction does raising the temperature favour?
Which direction does raising the temperature favour?
Endothermic direction (to absorb heat)
Which direction does lowering the temperature favour?
Which direction does lowering the temperature favour?
Exothermic direction (to release heat)