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Reaction Quotient Less than or Greater than 1

Posted: Sat Nov 14, 2015 8:35 pm
by 704578485
I was doing the practice modules on chemical equilibrium and one question asks what happens when Q>1 and when Q<1. Can't you not really tell though unless you know K. I know that if Q>1 the products are favored in the reaction but that does not necessarily mean the reaction will shift to the left to form more reactant.

Re: Reaction Quotient Less than or Greater than 1

Posted: Sun Nov 15, 2015 4:04 am
by Chem_Mod
if Q<1 or Q>1 then certainly you know something about the ratio of products to reactants. But without comparing to K, there's no knowing which way it will shift or proceed.

Re: Reaction Quotient Less than or Greater than 1

Posted: Mon Nov 30, 2015 1:39 pm
by Bilal Ismail Ahmed 3G
What exactly would be the difference between Q and K? Is K just a specific value for Q?

Re: Reaction Quotient Less than or Greater than 1  [ENDORSED]

Posted: Sun Nov 20, 2016 11:41 pm
by Katherine_Zhuo_3B
Q is the reaction quotient, which measures which direction a reaction will proceed given the initial partial pressures or concentrations. K is the equilibrium constant, which is a ration of products to reactants that does not change for the same reactions under the same conditions.