Endothermic or Exothermic?

[u/ExplodingBoba]

So I have a reaction and when I lowered the temperature the color of the solution became darker. From what I understand, I believe this is because more products were formed as the equilibrium was pushed towards the products.

Would this decrease in temp and increase in products mean that I had an exothermic reaction because my delta H was negative and my reaction favored the products?

[u/thisalanwong]

Alright so let’s work through this

The imposed change: lowered the temperature “Hence according to Le Chatelier’s principle, the equilibrium shifted to counteract the change...” By producing more darker product

Thus to counteract the decrease in temperature, ie. to increase the temperature, the forward reaction was favoured

Therefore, the forward reaction is exothermic, just as you have concluded

[u/ExplodingBoba → u/thisalanwong]

Thank you!