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# Equilibria, Energetics and Elements (F325) - June 2011 Exam. watch

1. (Original post by science7)
Why did you divide it by -298? I can't remember what I did. But I got delta S as 0.2something. I can't even remember whether I put negative or positive!
cos DeltG - DeltH = - TDeltS

Go and get wasted tonight, like me. Enjoy life LOOOL
2. (Original post by Sawasdee)
I got 33.8% for the last question.

I can't even do the ionic equations .

and 3.xx for the pH --"

I just want to get an A 110/150 UMS so, how many marks (roughly) for the actual exam?
Around 64 marks for 110 UMS
3. Hey ppl which is the link to the facebuk group against this exam? Plz?
4. i got 33. something %
5. 67.5% for the titration although my kc was 0.37 but should have 3.7 how did you guys get 45 when the moles were about 0.8 etc?
6. (Original post by appleschnapps)
June 2010 = pretty nice, Jan 2011 = even nicer, Specimen = Still pretty okay, June 2011: magic tang. :|
Don't think there will ever be an exam question as memorable as magic tang.
7. (Original post by RodrigoB)
cos DeltG - DeltH = - TDeltS

Go and get wasted tonight, like me. Enjoy life LOOOL
LOL I wish! I have 4 more exams!

But I remember now. I got Delta G as -108 and the reaction was feasible.
8. Wot did u guys write in the box where u had to write eda a + or a - for delta H and Dealt S and what was the reason u gave?
9. (Original post by brobro)
it gave us delta G at bout 298K and wanted delta G at 1000K so you wont have got the mark for writing 92.1 (delta G at 298) the answer was -108 because negative means feasable
No I figured it out eventually I got a -ve deltaG value I was just saying I was confused by it to begin with.
10. (Original post by broken_glass_heart)
Hey ppl which is the link to the facebuk group against this exam? Plz?
11. Question paper PLS~~~~~
12. (Original post by CoventryCity)
Well....you do.
It is your own fault tbh, was you the only one taking the exam? Can't believe nobody challenged it
You have to understand the amount of pressure and frustation we were feeling in the exam so these guys were probably concentrating 100% on the exam and had no notice of the time limit until it was too late.
13. (Original post by bigAsh)
f m l
t e l l m e a b o u t i t
14. (Original post by vinit92)
67.5% for the titration although my kc was 0.37 but should have 3.7 how did you guys get 45 when the moles were about 0.8 etc?
75% reacted so 0.6 moles of NO using the molar ratios that mean 0.3 moles of the other reactant reacted. 0.6 moles of product formed as the ratio was 22
This means the equilibrium moles of each were 0.2, 0.4 and 0.6. Divide by 2dm3 for concentration and sub in to Kc
15. (Original post by science7)
LOL I wish! I have 4 more exams!

But I remember now. I got Delta G as -108 and the reaction was feasible.
superb there you go then.
16. Hey touran can you upload Q1
17. Where is this paper??? Please hurry up
18. (Original post by touran22)

http://imageshack.us/photo/my-images/593/photoozf.jpg/
<3
19. (Original post by Student21)
You have to understand the amount of pressure and frustation we were feeling in the exam so these guys were probably concentrating 100% on the exam and had no notice of the time limit until it was too late.
I only found out through a friend...we were all so stressed out, working out the timings wasn't the first thing on our minds
20. (Original post by broken_glass_heart)
Wot did u guys write in the box where u had to write eda a + or a - for delta H and Dealt S and what was the reason u gave?
I wrote both as positive and god knows what reasons I gave!
I think I wrote an essay coz I was unsure.

Perhaps may have mentioned that Delta H is +ve coz it is an endothermic reaction? Bonds are Broken.

Delta S was +ve coz Entropy of products had a higher disorder than reactants. So product minus reactants give you a positive value?

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