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Posted: Sun Feb 02, 2020 8:11 pm
How do we know which way the equilibrium will shift?
Posted: Sun Feb 02, 2020 8:20 pm
It depends on what is changing in the reaction. If the number of moles are changing, the rxn will shift a certain way in order to get the system back to equilibrium. If the product is taken away, then equilibrium will shift towards the products and if product is added, equilibrium will shift towards the reactants. Equilibrium also shifts with changes in pressure and temperature.
Posted: Sun Feb 02, 2020 8:37 pm
For more clarification on your question, are you asking about how Le Chatelier's works?
Posted: Sun Feb 02, 2020 9:01 pm
If you are referring to K value vs Q value:
When Q>K, the rxn will shift to the left, creating more reactants
When Q<K, the rxn will shift to the right, creating more products
Posted: Sun Feb 02, 2020 10:08 pm
There are multiple different ways an equilibrium can shift- if reactants are added to a reaction, the reaction will naturally want to balance itself to fit the reaction constant and thus will create more products. The same applies vice-versa.
Posted: Wed Feb 05, 2020 10:29 am
It depends on the circumstance but in general, the reaction will shift in the direction that allows for it to reach equilibrium. For example, if Q (reaction quotient)<K(equilibrium constant) the reaction will shift to the right because the concentration of reactants is greater than the concentration of products.
Posted: Tue Mar 10, 2020 9:30 pm
if K>Q the reaction shifts in favor of the products
if K<Q the reaction shifts in favor of the reactants