Dynamic Equilibrium (HSC SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What defines dynamic equilibrium in a chemical system?
What defines dynamic equilibrium in a chemical system?
Forward & reverse rates are equal
Which two conditions are essential for reaching dynamic equilibrium?
Which two conditions are essential for reaching dynamic equilibrium?
Closed system & reversible reaction
At equilibrium, what is true about reactant and product concentrations?
At equilibrium, what is true about reactant and product concentrations?
They stay constant but need not be equal
What are the initial conditions when reactants are first placed in a closed container?
What are the initial conditions when reactants are first placed in a closed container?
High reactant concentration, no products
How does the forward reaction rate change as the system approaches equilibrium?
How does the forward reaction rate change as the system approaches equilibrium?
Decreases as reactants are consumed
On a rate vs time graph, what happens to the two lines at equilibrium?
On a rate vs time graph, what happens to the two lines at equilibrium?
They meet and plateau at same value
What does a horizontal line indicate on a concentration vs time graph?
What does a horizontal line indicate on a concentration vs time graph?
Constant concentration at equilibrium
How many lines appear on a rate vs time graph for a reversible reaction?
How many lines appear on a rate vs time graph for a reversible reaction?
Two lines only
What happens to observable properties at equilibrium?
What happens to observable properties at equilibrium?
They remain unchanged
What is the key difference between rate and concentration graphs at equilibrium?
What is the key difference between rate and concentration graphs at equilibrium?
Rate lines meet; concentration lines can differ