Haber Process and Equilibria | 9-1 GCSE and IGCSE Chemistry | OCR, AQA, Edexcel, CIE, WJEC

In this video Hazel teaches you about equilibria and the Haber Process, covering ammonia yield, exothermic and endothermic reactions, and all the other terms needed to help with your GCSE Chemistry revision.
NOTE: I am not talking for the entire length of this video! The first 9 minutes are me telling you about the Haber Process and ammonia production, then the for the rest of the video I run through GCSE exam questions for you.
These videos are designed to help with your GCSE science revision.
To keep up to date with my Science with Hazel videos and support:
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Hazel completed her undergraduate degree at St John's College, the University of Cambridge. She then did a PGCE (Post-Graduate Certificate of Education) before qualifying as a science teacher. She now works full time as a professional tutor.
Material required for A* / Grade 9 is included.
Please leave any topic requests in the comments below.

[@nimoguled8803]

Your not talking to yourself, your talking to a world who desperately needs your help,we always watch ur videos, I think this is the 100th time am watching this video

[@SciencewithHazel]

+Nimo Guled awww seriously the nicest message ever! I even added a screenshot to my Instagram :)

[@saduni001]

I'm sure there's a lot of people out there struggling to learn these chemistry calculations but they've not yet discovered this channel. Hope they find it and I'm surely going to spread the word. Your videos help a lot!

[@georgiethomas9513]

i just discovered your videos and OH MY GOD they are amazing! thank you so much i barely understand half the chemistry spec so these videos are a godsend

[@SciencewithHazel]

+Georgie Thomas happy to be of help! X

[@maskedsinger101]

I wasn't able to understand the lowering of temperature to make a higher yield, but now I do, thanks to you! You are literally going to save my Chemistry exam results 😄

[@javariashahzad7388]

Lowering the temp would lead to an increase in the yield . We know that even if there is a high rate it doesn't nessasarey means that the rate of yield increases , So in ammonia, the iron would oppose the change occured in the reaction and would try to reduce the change and would try to neutralize each other and if by favouring the forward reaction would increase as rate of reaction ( temp) is decreased would change the equilibrium from right to left

[@emily-pw4cc]

damn this video is uploaded 8 years ago and its still saving my grades. thank you

[@SciencewithHazel]

❤️ thankfully the Haber process hasn't changed in the last 8 years

[@Mara-qr3ut]

Hazel I just wanna give you a huge thanks you’ve helped me so much! I’m a homeschooler so you are my only teacher

[@anannyam4736]

Same

[@han.splash9648]

same

[@allenajith2585]

Okay you deserve a hug, for helping me out. Im getting better and better at chemistry thanks to you

[@SciencewithHazel]

My pleasure! X

[@mackenziecosta6265]

You have really helped me with understanding not only chemistry but also biology. At the beginning of the year, I was failing and now I'm more confident and feel like I've done well on my igcse biology and chemistry exams. It wouldn't have been possible without the help of you! Keep doing you 👌👍🙃

[@hannahjeffers3300]

i found your videos yesterday and start my science GCSEs next week and I've learnt so much from your videos already! Thank you so so much! Literally feel so much more confident and you explain everything so well.

[@stefaniapapadokonstantaki4708]

your summaries of the papers have helped so much for my mocks!! i don't know how well i have done but i've felt a lot surer of myself in these mocks so thank you very much!!

[@nancynyoni2850]

I'm doing my chemistry igcse exam tomorrow and this video was so helpful thank youuuu!!! From Tanzania

[@jasoncourt9440]

Im just finishing my final assignment of my level 3 science access course and your video has been so helpful :D

[@tanveemanjure4337]

omg this was so helpful, found these like two weeks ago and have been watching them everyday x

[@amenm18]

Your videos give me so much confidence in how well i know the topic because you apply what youve taught. Thank you so much.

[@ultimateultimatrix70]

Thank you so much for making these videos! They help me a lot for revision and feeling more confident answering questions with you. :)

[@komatsunana707]

I have my chemistry exam tomorrow and your videos saved me!!! In one week I moved up 3 grades! I can’t thank you enough xx

[@rosiewillis6805]

I'm finally feeling confident about my chemistry exam this Thursday, thanks a lot :)

[@sammiebarker6217]

Ahhhh this was so useful! Am panicking massively about tomorrow but every little helps

[@bkn7860]

your videos help me write very smoothly in exam. Very hype for the result!!

[@aymanamrani5952]

belated happy birthday you underrated hero . because of you I got an A in chemistry

[@SciencewithHazel]

Thank you, and congratulations!

[@ryanosulli2816]

You are helping me so much thank you, I was so confused about reversible reactions and I get it now because of you so thank you so so much for putting in so much effort to help people🙂🙂

[@Pgarc1a876]

Thank you so much for this video I've really been struggling with this topic in particular and you made the explanation of Haber Process and Equilibria so concise and easy to follow so again, Thank u

[@iqraajalil8652]

this was honestly so helpful! my teacher tried explaining it but she didn't tell us about why those conditions are the best or anything about moles.

[@penelopeward7520]

night before paper 2. thank you so much. taking chemistry next year but haven't actually revised yet... used your videos for paper 1 and it went really well.thank you

[@zarqajabeen9230]

You made me understand something troubling me for a while, You deserve a medal 🏅 thanks alot, you are awesome❤️❤️

[@rhilemaistre5214]

you have literally made me able to pass my science gcses OH MY GOD !!! THANK YOU SO MUCH

[@areejmalik8025]

Your videos have been soo helpful! I can't thank you enough for making these!

[@poeticxrealm]

oh my god This video was so clear and easy to understand omg thank you. I literally feel so confident now for tommrow thankss

[@AllisonLee0110]

I'm having my exam tomorrow and these are incredibly helpful! Thank you!!!

[@maiehisham3260]

This helped me so much! My IGCSE exam is on Monday and you're honestly making me feel more prepared. Can you please make more Cambridge science revision videos?

[@uspc.politics]

Are you Firdaus’ sister?

[@kibrahxn]

I had a biology exam yesterday and i discovered your videos on monday and i literally watched ALL OF THE bio ones. They really helped and i was soo much more confident with my exam :) NOW IM GONNA WATCH ALL the chem ones for my exam tomorrow.

[@SciencewithHazel]

+Kimunu hahaha. That's a lot of videos, you'll probably need tea and biscuits. 😂

[@alexanderjosmith]

Kimunu yeah tbh the bio exam this year was super weird and included a strangely small amount of the syllabus. Tree.

[@kibrahxn]

OMG Hazel you're the best teacher ever. Chemistry went so well (I hope) and I couldn't have done it without you

[@kibrahxn]

alexanderjosmith yeah ik. Most of the the things I revised for weren't even in it

[@SciencewithHazel]

Kimunu oh my goodness well done you! Sounds like it went so well! X

[@danuliek]

YOUR A LIFESAVER!

[@rosieyoung7867]

You are a literally a lifesaver ❤️😍

[@sianbrewin7847]

Very helpful on the morning of my exam hwhs

[@tamyraselvarajan4289]

Soo helpful! Thanks Hazel!

[@SciencewithHazel]

+King Lightwood 😇

[@jubjub7342]

hazel you are so SWEET!

[@aaronbrooks9992]

Thank you so much for this! On the final question you mentioned that ammonia liquifies, whereas the gases are cooled and then recycled. Does that mean that ammonia turns to a liquid (from a gas) at a lower temperature, and that the recyclable nitrogen and ammonia remain as gases due to a higher temperature needed to change the state? Thanks so much, I love your videos!

[@georgiad8132]

Thank you SO MUCH for posting this! I have my exam in a few weeks and this was really useful :):):)

[@SciencewithHazel]

Thank you so much for your lovely comment!! I'd really appreciate it if you could recommend my channel to your friends and followers :)

[@georgiad8132]

+Science with Hazel I sure will!!! 😊😊

[@SciencewithHazel]

+Fashionbygeorgiax thank you!!!! x

[@keelingallagher6556]

hi hazel - love your videos, they're so useful! i was just wondering if you could make one on the contact process? i've got paper 2 on wednesday xx

[@khqlifq]

You explain things adequately

[@user-vp1bg8cq5z]

Thank you!

[@elodiedelensjackson6863]

Your videos are so helpful omg

[@nimoguled8803]

And it's really helpful,Thank u vry much, WE LOVE YOU

[@mehaksyed7767]

This is amazing, thank you so much for your help

[@catyhine8351]

your videos are v helpful thankyou!

[@allahukbar3833]

thanks! great video.

[@SciencewithHazel]

+Num Raw Thanks! Let me know if you have any topic requests!

[@allahukbar3833]

+Science with Hazel can you do paper and gas chromotography please?

[@SciencewithHazel]

+Lifeofkaren Thank you! Sorry I can't reply directly to your messages - KZbin won't let me for some reason. Hope you see this and the responses I've made to your other comments.

[@lucyhopes3406]

Science with Hazel I need help chemistry mock tomorrow!!!! Snapchat me?? lucyhopesx

[@АидаРозыева]

love you*thank you )

[@SciencewithHazel]

+Аида Розыева my pleasure!

[@williamtweedy8874]

A VERY HELPFUL VIDEO

[@jjbofficial3519]

The video was amazing. I only have question. You said we have to decrease the temperature to give a high yield but where does the decrease occur? is it on the products side or the reactants side?

[@SciencewithHazel]

It's a closed system so whatever change in temperature you make will affect both the products and reactants. The point is that a decrease in temp favours the endothermic reaction i.e. the forward reaction which produces the products

[@jjbofficial3519]

Thank you so much.

[@kiramasiasomua7078]

Thanks Hazel 😊

[@ImogenPorter]

Hi Hazel! I've only recently started to watch your videos and already, you are a fave amongst my friends and I! The Haber process is my worst topic, and I was just wondering at 9:56 how you got 2 moles of gas on one side? I just don't understand the shifting equilibrium :( Thanks a million xxx

[@SciencewithHazel]

Thank you! So glad you guys find them useful. There are 2 moles of gas in total on the reactants side (the left hand side of the equation) as there is 1 mole of CH4 and 1 mole of H20, which are both in gaseous form (as shown by the (g) after each of the compounds) Hope that helps!

[@ImogenPorter]

Thanks Hazel! You're the bomb! xxx

[@bethdixon4066]

SOOOO HELPFUL

[@sessih1302]

HELPFUL. THANK YOU.

[@xxxxx2848]

At 10:52, wouldn’t the equilibrium position shift to the left as that is the endothermic side? I’m so confused!

[@rehan9163]

Hi thanks for the video. At 15:21 the pop up box mentions that 200 is the optimum temperature but the question is asking about pressure.Was this a mistake?

[@abdulmusawwir8603]

Does, in general, the presence of a catalyst affect the yield?

[@hadiyahhussain7855]

Hi hazel, can you make a video on le chateliers principle plz 🙏🏽😄

[@karenkwang6596]

Happy belated birthday!

[@dalmaryare505]

OMG thank so much madam your video is really helpful to me.i appreciate but the last part of the video is hard to hear your voice well

[@nabz9283]

thanks

[@meshachjones6909]

Great vid

[@lattemacchiato5003]

This is soooooo helpful! Thanks a lot :)

[@frostysa7361]

Hydrogen from natural gas** not water. Love your vids too keep them up!!

[@polemole9183]

A big thank you ! x

[@hellothere6475]

Thank youuuu :)))

[@maababdelatif8486]

i really dont understand the pressure thing ugh its so confusing

[@zeinabadamjee5989]

Hey hazel can you do a 2016 Edexcel paper 1C

[@aliazhar5754]

btw hydrogen is obtained from natural gases not water

[@mofayaaz772]

Thanx😁

[@louay_7626]

Amazing thx

[@aanyasrivastava9234]

how does endothermic reaction become cooler?

[@duchuy3157]

It takes in energy from the surroundings

[@qwerty-9778]

unrelated, but what's your best of the 3 sciences?

[@SciencewithHazel]

+jake jaki technically I'm a biologist, but I prefer teaching chemistry as it's the most satisfying when I get my tutees to understand it

[@hollyskye8487]

does an one know if the haber process in paper 1 edexcell IGCSE?? x

[@baguette6758]

Holly Skye it's random we don't know, any topic could come up tomorrow (if you take iGCSE)

[@hollyskye8487]

yes but as in could it be in paper 1 or is it only on paper 2?

[@samabbott4862]

Holly Skye paper 1

[@alexanderjosmith]

Holly Skye (Haber Process is PAPER 1) but (The Contact Process is PAPER 2)

[@hollyskye8487]

thanks so much

[@ellabeckley1940]

oh my godfdddd i hate this topic THANK YOU