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Effect of temperature 7D.7

Posted: Tue Mar 10, 2020 9:57 pm
by AKhanna_3H
For part c of this question, it asks what the effect of raising the temperature on the rate constants. What are the general trends of raising the temperature for endothermic and exothermic reactions?

Re: Effect of temperature 7D.7

Posted: Wed Mar 11, 2020 1:53 am
by Jason Wu 1E
I think it doesn't matter if the reaction is exothermic or endothermic because those are the final states while Kinetics focuses on the transition between reactants to products. Increasing the temperature will then increase the rate constant!

Re: Effect of temperature 7D.7

Posted: Wed Mar 11, 2020 9:08 am
by Tyler Angtuaco 1G
Raising the temperature for endothermic reactions will make the production of products more favorable (forward reaction). Conversely, raising the temperature for exothermic reactions makes the production of products less favorable (forward reaction). As for temperature's effect on rate constants, you can generalize trends based on the Arrhenius equation; higher temperature results in higher values for rate constants.

Re: Effect of temperature 7D.7

Posted: Wed Mar 11, 2020 10:03 am
by Sartaj Bal 1J
Since the equilibrium constant for a reaction is equal to the ratio of the rate constants for the forward and reverse reactions, and since the equilibrium constant is increasing for the forward reaction due to it being endothermic, that means the rate constant for the forward reaction is increasing as well.