Equilibrium Constants:

When decreasing the temperature of an endothermic reaction; the constant (K) value decreases or increases?

In my book the answer states "increase the value of the constant as the reaction is endothermic.

But my notes states that "when temperature increases, the K value increases for endothermic reactions."

So, doesn't the K value decrease when the temperature decreases?

Question

Equilibrium Constants:

When decreasing the temperature of an endothermic reaction; the constant (K) value decreases or increases?

In my book the answer states "increase the value of the constant as the reaction is endothermic.

But my notes states that "when temperature increases, the K value increases for endothermic reactions."

So, doesn't the K value decrease when the temperature decreases?

nottim · Answer

We should revisit Le Chatelier's principle.

nottim · Answer

http://en.wikipedia.org/wiki/Le_Chatelier's_principle#Effect_of_change_in_temperature

nottim · Answer

wai.t TELL ME THE K WIKIPEDIA. Darnit

anonymous · Answer

what? lol

anonymous · Answer

when temperate decreases in an endothermic reaction the equilibrium shifts to the left i think

anonymous · Answer

temperature*

nottim · Answer

My notes say: "Increase temp, K decreases in exothermic rx, K increases in endothermic rx.

anonymous · Answer

yeah..
but this is decreases; so does it go the opposite?

nottim · Answer

"Decreases temp, K down in exothermic, K up in endothermic rx"

anonymous · Answer

why does the constant increases when the temperature decreases? and when the temperature increases the constant still increases..?

nottim · Answer

for endos.

anonymous · Answer

okay; thanks.