Equilibrium (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
11 cards from this deck
ShowHide
Practise the cards
11 cards from this deck
What is equilibrium? (rates)
What is equilibrium? (rates)
Rate of forward reaction equals rate of backward reaction
Effect of equilibrium on concentrations
Effect of equilibrium on concentrations
No net change in concentrations over time
Direction of irreversible reactions
Direction of irreversible reactions
Forward direction only
Reversible reactions - key feature
Reversible reactions - key feature
Can proceed in both forward and backward directions
What happens when forward & backward rates equal?
What happens when forward & backward rates equal?
Equilibrium is established
Container type needed for equilibrium
Container type needed for equilibrium
Sealed container
What stays constant at equilibrium?
What stays constant at equilibrium?
Concentrations of reactants and products
Are concentrations equal at equilibrium?
Are concentrations equal at equilibrium?
Not necessarily equal
What indicates position of equilibrium
What indicates position of equilibrium
Relative amounts of reactants and products
Can position of equilibrium shift?
Can position of equilibrium shift?
Yes, in response to changes in conditions
Effect of equilibrium shift
Effect of equilibrium shift
Alters concentrations of reactants or products