Chemistry Forum

Hello fellow chemists,

I've been studying chemical equilibrium and came across a reaction where the equilibrium constant expression seems a bit complex. The reaction is as follows:

$$\text{aA} + \text{bB} \rightleftharpoons \text{cC} + \text{dD}$$

Given that the stoichiometric coefficients are integers, how would you derive the expression for the equilibrium constant ( K )? Additionally, how does the change in concentration of one of the reactants affect the equilibrium position?

Law of mass action

K = C^c*D^d/(A^a*B^b)

K = constant, so changes of one component will affect all others.

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