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For a certaln gas-phase rcaction, thc fractlon of products In an equlllbrlum mlxture [s Inacrcascd by elther Increasing the temperature or by increasing the volume ...

Question

For a certaln gas-phase rcaction, thc fractlon of products In an equlllbrlum mlxture [s Inacrcascd by elther Increasing the temperature or by increasing the volume of the reaction vesseL Is the reaction exothermic or endothermlc? lusufy your answer:Does the balauced chemical cquatton havc more molecules un the rcatnt sldc or product sldc?

For a certaln gas-phase rcaction, thc fractlon of products In an equlllbrlum mlxture [s Inacrcascd by elther Increasing the temperature or by increasing the volume of the reaction vesseL Is the reaction exothermic or endothermlc? lusufy your answer: Does the balauced chemical cquatton havc more molecules un the rcatnt sldc or product sldc?



Answers

What is an exothermic reaction? Which has greater energy in an exothermic reaction, the reactants or the products?

In this question here we're told that we have a gas fees reaction so reactant since in the gas phase and equilibrium with products in the gas fees, the fraction of products is increased by either increasing the temperature. That means that temperature has to be on the left hand side, so increase the temperature would shift to favor the products or by increasing the volume of the reaction vessels for a, um is the reaction an exo thermic or endo thermic. The reaction would have to be endo thermic as an increase in temperature will favor a shift rights okay and increase the fraction of products. And for part B, which side has more molecule? So we were told that we have a shift right by either increasing the volume. So if we increase the volume, um, so increased volume means we're going to decrease the pressure from which means that if we're to decrease the pressure and we want to favor a shift right, this side has to be the high pressure side. This side has to be the low pressure side because if we decrease the pressure, this would cause a shift towards the rights or the high pressure side for us. We want this to shift to the right, which means that the high pressure side must be the products side to fever in increased fraction of products. When the volume is increased or pressure is decreased. That's the same thing. Therefore, the product side. We'll have more gaseous molecules.

Let's start this question by raiding the equilibrium reaction. You've got C o C 04 to minus Equus on six each to a liquid in equilibrium with ciego H 20 62 plus Equus and for Seo minus Equus plus M. Papi. We're told that this is excellent, sir. Mix for a minute. But the energy on, uh, the product side were asked Well, the equilibrium concentration of CEO seo for two minutes increase or decrease in the following changes occur. Change number one Each CEO is added, which will effectively caused the CEO of minus concentration to increase. If the CEO minus concentration increases that causes a shift towards the left. There's a shift left and due to that shift left, uh, that would cause it increase in the concentration of CEO seo four to minus dress be is, uh, cobalt nitrate CEO and old 32 is added, and that would cause in increase in the concentration of cobalt two. Plus um is going to increase as a result. To go back to the equilibrium, the cobalt would be hydrated. That would cause an increase here that would also cause a shift towards the left so there would be a shift left here again and that would also cause an increase in the amount of CEO Seo 14 minus stress. See is the solution is diluted with water, so we're adding extra water to this. So if we add extra water, go back to your equilibrium. Adding extra water causes to increase here cause a shift towards the rights. So, um, water doesn't have a concentration, but an increase in each to oh causes a shift towards the rates, which means that there's a decrease in the concentration of CEO Seo for two minus and stress D is going to be the temperatures increased. So if we go back up, we're told that this is the axle. Thermic the temperature increase good increase here. Lush ties burns would shift away from the increase. So what shift towards the left So a temperature increased temperature increase? Um, excellent. There make would cause a shift towards the left and because of that, there would be an increase in the concentration of CEO Seo for

Here in this question, we will explain the end of her mid region end of humiliation and which has greater energy tearing and determination raked in our product. So here, in a chemical reaction, if I do heat a light energy is observed during the reaction, then it is uh huh called and the term in creation. Since energy is observed, the energy of retained is less than and that's, uh, retained. We obtains is less than energy less than the energy of product. Put our lips So here, energy of retains less energy observed is equal to energy of products.

So there's a more qualitative way to think about the same this question, and there's also a more mathematical way. But I'm gonna go over the qualitative way and then consider, um, how you could go about the mathematical and so consider it was shot Lee a splints principle. And so if we have an exo thermic reaction, I'm just gonna be generic and say we have a plus B reacting in equilibrium to be with a B plus. This is X author mix orders say it's also releasing heat this triangle, the Delta and so well, Silas principle was always about a balance. It's saying that whenever there's a change made to the balance of the equilibrium, there's going to be a result in Rio of the results repeats counteract that change. So we have on this side we have our products on this side. We have are reacting, so it's a little little balance here. And so if we increase the temperature right here, he is a An energy is a product in this reaction so increasing. This is basically saying we're adding more right here on this side. We're making this side of the scale tip downwards because it's heavier. There's more products now than there are reactions. And so then, as a result, the reaction has to shift it back, this other direction to counter act the increase in the amount of products. And so then there will be more reaction. So as a result, and so that's why when you have an ex affair in reaction other words, he is released. Whenever you increase the temperature, the reaction will shift Mawr back towards the reacts more to the left. Now, this is This is definitely some hand waving stuff they're going on with saying that he temperature is a product. The more mathematical ways to remember that Delta G equals dealt Delta Age minus T Delta s. And there's also relationship between Delta G and um negative uh, RTL and K. And so, if you were, you can work through and realize why a temperature will have a certain effect based depending on whether dealt ages positive or negative in this relationship. Okay, but that's a little more just, ah, less easy to think about. It's easier, I think about in Russia is principle


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