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Emily Summers












Two Types of Equilibria

Homogeneous equilibrium Heterogeneous equilibrium
Everything that is present in the reaction is in Substances present are in different
the same state/phase, e.g. all gaseous, or all states/phases, some reactions may include
in the same solution liquid and solids for instance


Homogenous KC Equilibria

For…

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Emily Summers








KC, the equilibrium constant is constant regardless to changes of pressures, amounts and
concentration it only changes when the temperature is changed.



Heterogeneous KC Equilibria










ALWAYS LEAVE OUT THE SOLIDS IN HETEROGENOUS KC EXPRESSIONS!



Le Chatelier's Principle





















If the equilibrium concentrations do not equal KC then the system…

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Emily Summers










Worked Example of a Heterogeneous Equilibrium KC Calculation



1 mole of Carbon dioxide is heated with excess carbon at a temperature of 700 degrees
Celsius in a vessel of a volume of 20dm3 95% of the carbon dioxide reacted to form carbon
monoxide.

Calculate KC for:



C(s) +…

Comments

Ying

your notes are super helpful! thank you for sharing :)

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