AS Chemistry- helping each other out!

Omfg you're back?

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this is great

Well I don't know about the current Edexcel spec, I'm not sure if they changed it from when I last did it (2010-2012) but all the hybridisation stuff is stuff I covered in first year of uni and we didn't need to know it for A-level. I'm not sure why you guys would even need to be introduced to it at such an early stage

lol I was just curious

lol I was just curious

So the temperature of the Haber process is 298K?

Why? Because of the standard states and conditions stuff needed for the steps to occur?

And what catalyst is used?

I think it just says in the spec we need to know why the sigma and pi bonding occur, something like that

I love that curiosity Also that little story you did for the radicals was awesome

Yeah lol but you'd just say its because of the orbitals overlapping?






Haha thanks

Pretty sure it's an Iron catalyst used, but I think the temperature might be alot higher!

298k is room temperature (25 degrees celcius) and when you think about it, the reaction will require heat energy to get things going

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Your back! Ready to smash chemistry exam?

O

So what temperature? And oh right so just to increase the rate of reaction?

Exactly! You want to increase the rate of reaction. Between 400 - 450°C according to chemguide is what the haber process requires!

Another key point is that you need to include pressure as the haber process requires pressure also

This website covers alot of useful stuff but just make sure you know what stuff you should be learning for each topic, have a look through your syllabus

http://www.chemguide.co.uk/physical/equilibria/haber.html

You're*

Haha yeeeeee, I got the highest mark for the Unit 2 paper in my whole year
(It was the January 2015 international paper, so EXTRA gassed)

And I got the highest grade in the Unit 1 Jan2015 IAL paper, so EXTRAAAA gassed lel

but no I'm not ready.

lmao yeah, miss me?



ikr lmao

Exactly! You want to increase the rate of reaction. Between 400 - 450°C according to chemguide is what the haber process requires!

Another key point is that you need to include pressure as the haber process requires pressure also

This website covers alot of useful stuff but just make sure you know what stuff you should be learning for each topic, have a look through your syllabus

http://www.chemguide.co.uk/physical/equilibria/haber.html

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Out of interest,what grade did you get and what was your ums.We haven't done a mock yet in my school.
You are still correcting me I see.Yeah I don't feel ready properly either,but I'm still hammering away at last papers.
How are you coping in your other subjects?

Where have you beeeen!!??


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Thank you! And yeah Chemguide is great. Feel like it gives me what the exams wants lol



I got a B rofl for the Unit 2 paper, but idrc because it was super hard anyway. Andd Idk about UMS? Teacher just gave us the grade lol.

For the Unit 1 paper I got an A and raw marks: 68/70

Maths is good (still need to do trigonometric identities for C2 though! and I don't really look at S1 lol), Chemistry is good, Biology is boring but have notes and stuff, just need to practice. Psychology is gay but I've started revising for it

Wby?

Are there even trig identities in c2?

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Are there even trig identities in c2?

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