The Equilibrium Constant Kc – Part 2 (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What determines the units of the equilibrium constant for a reaction?
What determines the units of the equilibrium constant for a reaction?
Number of concentration terms in
For the reaction , what are the units of ?
For the reaction , what are the units of ?
No units
What are the units of for ?
What are the units of for ?
mol dm⁻³
Which describes a homogeneous equilibrium?
Which describes a homogeneous equilibrium?
All species exist in the same phase
In heterogeneous equilibria, which species are omitted from the expression?
In heterogeneous equilibria, which species are omitted from the expression?
Solids and liquids
Why are solids excluded from expressions in heterogeneous equilibria?
Why are solids excluded from expressions in heterogeneous equilibria?
Their concentration remains constant
What does ICE stand for when using tables to calculate ?
What does ICE stand for when using tables to calculate ?
Initial, Change, Equilibrium
To convert 20.0 cm³ to dm³, what calculation is needed?
To convert 20.0 cm³ to dm³, what calculation is needed?
Divide by 1000
In the esterification experiment, how long were the flasks left to reach equilibrium?
In the esterification experiment, how long were the flasks left to reach equilibrium?
Approximately one week
When writing units with indices, which convention should be followed?
When writing units with indices, which convention should be followed?
Write positive indices before negative