The Equilibrium Constant Kc – Part 2 (OCR A-Level Chemistry A): Flashcards
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Practise the cards
10 cards from this deck
What does a larger value indicate?
What does a larger value indicate?
Equilibrium position lies further towards products
What determines the units of ?
What determines the units of ?
Number of concentration terms in numerator and denominator
Define homogeneous equilibrium
Define homogeneous equilibrium
All equilibrium species exist in the same state or phase
Define heterogeneous equilibrium
Define heterogeneous equilibrium
Equilibrium species exist in different states or phases
What is omitted from in heterogeneous equilibria?
What is omitted from in heterogeneous equilibria?
Solids and liquids
Why omit solids/liquids from ?
Why omit solids/liquids from ?
Their concentration remains essentially constant
Formula: concentration from amount and volume
Formula: concentration from amount and volume
Concentration = amount ÷ volume
Convention for writing units with indices
Convention for writing units with indices
Write positive indices before negative indices
Convert cm³ to dm³
Convert cm³ to dm³
Divide by 1000
States included in heterogeneous expression?
States included in heterogeneous expression?
Only gases (g) and aqueous solutions (aq)