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How does a catalyst influence the equilibrium constant?...

Question

How does a catalyst influence the equilibrium constant?

How does a catalyst influence the equilibrium constant?



Answers

What is a catalyst? How does a catalyst increase the rate of a
chemical reaction?

So equilibrium, constant k. It tells us what parts of the reaction our preferred. So, for example, if we have a large kay, our products are favored. And so this is for a reversible reactions. So let's say a goes to be reversible. E k is going to equal the concentration of the products in this case, be over the concentration of the reactant CE in this case, eh? And a large K results in a favoring of the products and a small K results in a favoring of the reactant CE. So that's the significance of the equilibrium constant K.

So the question is about the effect of temperature on an equilibrium constant and whether that that effect would be to increase or decrease equilibrium. Constant depends on the entropy change for the reaction with a negative entropy change, that means heat is produced. You can think of it as being on the right hand side. And so if you have ah, the reaction at equilibrium, you measure the concentrations and you calculate the equilibrium constant. Then when you change the temperature, if you increase the temperature, then you will push the reaction to the left. The reactors will be favored. And so Aziz T increases. Uh, okay, will decrease because the heat is on the right hand side. He does a product. Now, if it's an endo thermic reaction with a positive Delta H, then that means heat is consumed or absorbed in the reaction. And so again, if you measure the equilibrium concentrations of the three substances the PCL five, the chlorine and the PCL three, you calculate an equilibrium constant, and then, uh, you increase the temperature. Well, what effect is that can have increasing the temperature. You do that by adding heat, so you're adding a substance on the left that's going to push the reaction to the right and the equilibrium. Constant will increase. And so the mechanism by which the equilibrium constant is affected is the entropy change. And whether it goes up or down depends on whether the entropy change, uh, is positive or negative.

So we've been asked to to find the equilibrium constant. The equilibrium constant is designated as K. And if we consider a reaction in which a borns be, then we look at two different values of the equilibrium Constant, a large cave Alya and a small cave value. We will find two different things. So if Kay is a large value, you're going to be driving towards the products, so it will favor the formation of the products of B. If you have a small cave value, it's going to be favoring the formation of reaction. Okay, so you're okay. Value is going to drive, which, whether your products or your react information, this favored

So were asked, What is the capital? Well, a catalogue. Is there something that increases the rates of a chemical reaction, but it is not consumed by the reaction reaction. A catalyst works by providing alternative mechanism. 40 Reaction, one in which the rate determining step has a lower activation energy.


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