Temp Effects on Forward & Reverse Rate Constants

AI Thread Summary
An increase in temperature affects the rate constants of both forward and reverse reactions, with the specific impact depending on the enthalpy change (ΔH) of the reaction. For exothermic reactions, an increase in temperature typically decreases the forward rate constant, while it increases the reverse rate constant. Conversely, for endothermic reactions, the forward rate constant generally increases with temperature, while the reverse rate constant decreases. Specifying temperature when providing a value for the equilibrium constant (Ke) is crucial because Ke is temperature-dependent, influencing the position of equilibrium. Understanding these relationships is essential for accurately predicting reaction behavior under varying thermal conditions.
BH20
Messages
78
Reaction score
0
What would be the effect of an increase in temp on the rate constant of
a) the forward reaction
b) reverse reaction


and my second Q is..why is it important to specify the temp when giving a value for Ke?

Thanks
 
Physics news on Phys.org
You may want to elaborate on your questions. Example, are you referring to chemical reactions? Just to give you a hint, it is a good idea to describe how you would answer the questions or what you don't understand about them. Then we can help steer you in the right direction. :wink:
 
BH20 said:
What would be the effect of an increase in temp on the rate constant of
a) the forward reaction
b) reverse reaction

and my second Q is..why is it important to specify the temp when giving a value for Ke?
Going further upon what Ouabache has said, the answer to the first question depends on what the \Delta H of the system is. It is not possible to say that this will happen to the forward reaction because you do not know if it is exothermic or endothermic.

Am I to assume that this is a question related to dynamic equilibrium?

The Bob (2004 ©)
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Heat transfer problem for cooling a solar panel
Replies
9
Views
3K
Equilibrium and indicator equation
Replies
3
Views
1K
Concept about photoelectric effect
Replies
17
Views
1K
Gas at a constant pressure: using Cv.dT correctly
Replies
10
Views
2K
Chemistry Relationship between chemical equilibrium and rate equilibrium
Replies
2
Views
2K
Range of frequency heard by observer related to Doppler effect
Replies
8
Views
1K
Entropy Change in a Reversible Process multiple phase change
Replies
1
Views
2K
A Practical use of an overall heat transfer coefficient?
Replies
14
Views
2K
Thermodynamics - Temperature change of Argon
Replies
19
Views
2K
Centripetal Force Homework: Effect of Increasing Mass on Revolutions
Replies
6
Views
2K

Hot Threads

Recent Insights

Back
Top