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1937711
OCR A2 Chemistry Kc
Description
A Levels Chemistry Mind Map on OCR A2 Chemistry Kc, created by Sarah H-V on 30/01/2015.
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ocr
chemistry
kc
f325
chemistry
a levels
Mind Map by
Sarah H-V
, updated more than 1 year ago
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Created by
Sarah H-V
over 9 years ago
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Resource summary
OCR A2 Chemistry Kc
The magnitude of Kc indicates the extent of a chemical reaction
Kc < 1
Reaction is reactant favoured
Kc = 1
Position of equilibrium is halfway between the reactants and products
Kc > 1
Reaction is product favoured
The affect of temperature change
When temperature increases and the forward reaction is endothermic, Kc INCREASES
When the temperature increases and the forward reaction is exothermic, Kc DECREASES
The value of Kc is unaffected by :
The presence of a catalyst
Catalysts speed up the rate of the forward reaction and the reverse reaction by the same factor
Changes in concentration
Changes in pressure
Kc - Equilibrium Constant
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