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What does Kc show and how do you calculate it?
So Kc is known as the Equilibrium Constant, and it is a ratio comprised of the products in an equilibrium equation divided by the reactants in that respective equation.
So for example the reaction below:
CH3COOH +C2H5OH <-> CH3COOHC2H5 + H20
The Kc equation would look like this:
[CH3COOHC2H5][H2O] / [CH3COOH][C2H5OH] = Kc
Given that you have the concentration of each respective reactant, you can work out the value of Kc.
If kc >1 then the reaction produces more product (product favoured), and the opposite applies.
Remember Kc is unaffected by changes in concentration, pressure and the action of a catalyst. It only changes with temperature, and that depends on the enthalpy sign associated with the reaction.
I hope this helps Phoebe good luck in your studies.