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Calculate it enthalpy of kJ of combustion using the bondenergies given.C2 (g) + 3 O2 (g) --> 2CO2 (g)Bond: C=C C=H C=O O=OBond Energy: 347 413...

Question

Calculate it enthalpy of kJ of combustion using the bondenergies given.C2 (g) + 3 O2 (g) --> 2CO2 (g)Bond: C=C C=H C=O O=OBond Energy: 347 413 799 498Group of answer choices-1355 kJ1355 kJ1841 kJ3196 kJ

Calculate it enthalpy of kJ of combustion using the bond energies given. C2 (g) + 3 O2 (g) --> 2 CO2 (g) Bond: C=C C=H C=O O=O Bond Energy: 347 413 799 498 Group of answer choices -1355 kJ 1355 kJ 1841 kJ 3196 kJ



Answers

Calculate the enthalpy for the following reaction using the given bond energies $(\mathrm{kJ} / \mathrm{mol}):$ $(C-H=414 ; H-O=463 ; H-C l=431, C-C l=326 ; C-O=335)$ $\mathrm{CH}_{3}-\mathrm{OH}(g)+\mathrm{HCl}(g) \longrightarrow \mathrm{CH}_{3}-\mathrm{Cl}(g)+\mathrm{H}_{2} \mathrm{O}(g)$ (a) $-23 \mathrm{~kJ} / \mathrm{mol}$ (b) $-42 \mathrm{~kJ} / \mathrm{mol}$ (c) $-59 \mathrm{~kJ} / \mathrm{mol}$ (d) $-511 \mathrm{~kJ} / \mathrm{mol}$

Hello students in this question we have given the entropy change for the following reaction is 3 68 kg jew. So we have to calculate the average O. F. Born Energy. Okay so we have to calculate the bond energy of eight. Okay. Who have, So we can write that the bond energy or delta H. This can be written as bond energy of the reactant minus bond energy of the product. So bond energy for the reactant to we have Oh f. two. So this will be the two of Jiro uh sorry O. F. Bond. And in the product we don't have any bonds. So this will be equal to zero. So this is 3 68 kg jewel. So hence the bond energy of Ox season and flooring it is equals to 3 68 divided by two. This is equal to 1 84 kg jewel per bowl. Okay so it means from the given options option A. It is the correct answer for this problem. Okay thank you.

We were asked to calculate the entropy of formation for Floridians gas phase and were given the information about the bond and bookie of F two is 156 point on killed Jules Permal. So we write the equation for the formation of Maureen. We have 1/2 of Act Two in that we'll turn into be so the entropy of formation we're flooring is equal to 1/2 of 156.9 killer jewels. Permal that is equal to 78.45 killed Jules Permal.

This video, we are going to review how to find out h for the breakdown of the oxygen molecule, the 02 molecule into two oxygen atoms. So I went ahead. And this is a Hess's law equation again. These are pretty common in this unit and were given three equations A, B and C listed 123 or in sequence in the book. So I went ahead and reviewed how I added those equations such a They end up with 02 on the left, leading two to oxygen atoms on the right. And then we subsequently out of all of the intel apiece for each individual. Intermediate reaction for reactions A A through C. So I'm gonna go ahead and walk you through that. Here we have, uh, and see of the 1st 2 equations I'm going to add together. And that is because, um, there are some common species here that we can cancel out if we add these two together we will end up with 03 on the left, breaks down into O and 02 So on the next page, I have that broken down. 03 has breaks down into 02 and oh, Gas, By the way, I did leave out the sub scripts because they're all gashes molecules, and it just makes the screen less busy so you can focus on the compounds from here. What I did is I went ahead and times that new equation Times two. So I doubled all the coefficients. So what we end up with is three or I'm sorry to Ozone Adams for two ozone molecules, That's the two or three on the left, and we have to 02 plus two oxygen atoms. The last thing we're going to do is we're going to take the second equation, that's B, and we're going to flip it. So we end up with 302 molecules on the left with 203 molecules on the right, and the last thing we dio is gonna go and separate. These is we are going to cancel out of the common species here, cancel the ozone molecules, and then the 20 two's on the right, Hansel and we're left with just 102 on the left. So we end up with 102 molecule going to too well and I'll go in and out of the sub scripts here. Those are both gashes. Okay, So to find the overall delta age, I'm going to go ahead and do the math. So when we add A and C together, we have 233 killer jewels, and we have negative 1 99 killer jewels that nuts out to positive. 34 killed, Jules. And then what I'm going to dio is that that resulting equation. And that's this. The one on the very top. It's the ozone breaks down into a non oxygen molecule in an oxygen. Adam, we're going to take that particular delta. They could sort of a new Delta H that's not explicitly written on those are with those three equations sort of hybrid. Um, we're gonna go ahead and double that bond, and they'll be since we doubled that resulting equation. So what we end up with is 68 killed, Jules, that's positive. 68 killed rules and then last but not least, will take that result in 68 killed Jules and Adam, whatever b is supposed to be, Would we flip it when we flipped? Be So what? Somebody just a second here. Well, go ahead and flip me. That's positive. 427. Okay, so we will take 68. End for 27. That's 495 killer Jules. Okay, So the bond and Bill P for this reaction is 495 killer. Jules, The reaction is simply breaking the

For this problem will be determined the entropy information of corn but outside. And the first thing that you always have to know and determined. And the information is the equation necessary to form it. So it's a form, Corinne one outside. You have to use Corrine and Oxygen and our balances. Who would have to put a to in front of corny monoxide? So this is our equation. And then, if you recall the equation for incomplete information, is the sum, uh, your bonds broken won't supplied by their individual moles. It's attractive by the bonds formed, also once fired by God malls and then you and put the sum of the bond energy. So you're gonna be breaking a reactive bonds. We're gonna break that card and quarrying bond, which have the value of 242.7 killed. Jules Permal. We'll be playing that by one mole to cancel Kemal's, adding that to the value of the oxygen bond, which is 498.7, killing Jewel's Permal once part by the one mall from the equation. And we will be subtracting the value for the corn. But outside, which is 206 killing joules per mole, but required have to multiply this by two moles based on our balanced equation, cancelling out her moles. And this will give us an entropy in formation of 329 playing for cultural.


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