Chemistry › Section M · Equilibrium › Topic M.2
Equilibrium constants
Every equilibrium mixture, however it was started, obeys one simple rule at a given temperature: a particular ratio of concentrations always comes out the same. That number, the equilibrium constant, tells you where the balance lies and which way a mixture will move to reach it.
In this topic
- One number behind every equilibrium
- The reaction quotient, Q
- The equilibrium constant, K
- Solids, liquids and heterogeneous equilibria
- What the size of K tells you
- Q versus K: which way will it go?
- Worked example: which way will it go?
- Gases: Kp and its link to Kc
- Worked example: converting Kc to Kp
- Reversing, scaling and adding equations
- Common mistakes to avoid
- Key takeaways
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