Re: Q and Ke: Small K value and Large K value

[Elizabeth Harty 1A]

What exactly is the reaction quotient?

[Cooper Baddley 1F]

The reaction quotient or Q is the ratio of the products over the reactants at whatever time you calculated the concentrations at. We then compare this ratio to the known K value or equilibrium constant to see if the reaction is still going and in what direction.

[Madeline Phan 1E]

Q is the value of products over reactants at any given time in the equation. K is the value of products over reactants when the reaction has reached equilibrium.

[Kayli Choy 2F]

The reaction quotient, Q, is calculated in the same way in which K is calculated. If Q < K, the reaction is proceeding forward, toward products. If Q > K, the reaction is proceeding in reverse, toward reactants.

[505316964]

If Q is less than K this tells you that products still need to form, so the reaction will go forward.
If Q is greater than K it tells you that there are more products and the reaction must go back towards the reactants.

[Vinita Saxena 2I]

Q changes based on where the reaction is, whereas K does not change except when temperature changes.

[504939134]

The reaction quotient is the amount of products over reactants at any time during the Rxn, it is calculated the same way as K but it is not at equilibrium.

[pmokh14B]

the reaction quotient is basically the equilibrium constant at a moment where the reaction is not at equilibrium. It can provide insight into which direction the reaction will proceed.