GCSE Chemistry Revision "The Haber Process" (Triple)

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In this video, we look at how the Haber Process is used to make ammonia. We explore the reaction and the how the conditions are chosen to maximise the yield of ammonia.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.
Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommon...)
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Artist: incompetech.com/
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Ammonium nitrate fertiliser By Cjp24 - Own work, CC BY-SA 4.0, commons.wikime...

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[@anishnair4430]

4:20

[@vybz987]

I just made more notes on this whole topic in 20 minuets. thanks! feeling alot better about chemistry this time compared to last mock.

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paper 4?>> ?? ?

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THE KING, THE LEGEND, THE MASTER. LIVE LONG AND NO MERCY

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cramming for tomorrow

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Hi sir, I really need you to do As level chemistry please i need your help. The only reason i passed last year was because of you and i got all A. Please help

[@pierretadros3723]

Hi sir if you remember me from the mock comment on another video well tomorrow is my final igcse paper4 exam and I would like to thank you very much for all of the help and support over the last two years

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how did they go?

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[@olliejonesmusic]

In your graph of Temperatures, is the Y axis percentage Yield? Thank you so much. Last year I had a hip replacement and I am now in GCSE year, and your videos have really helped me. Oliver

[@Freesciencelessons]

Well it's the percentage of ammonia in the mix when it reaches equilibrium. This is a bit different to percentage yield. The percentage yield is (number of moles of product / maximum possible number of moles of product) x 100. With the Haber process, the ammonia manufacturers do a number of things to increase the amount of ammonia eg recirculating back over the catalyst. These have the effect of increasing the percentage yield.

[@olliejonesmusic]

@@Freesciencelessons I see. Thank you. I remember now. Thanks a lot.

[@lukewarmbovril1043]

We need you for A Levels!

[@shayaan563]

for equilibrium reaction the reactants need to be in the state of gas?

[@Freesciencelessons]

No they can also be in solution.

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Got my exam in like 2 hours 😣

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Samiirah Farah how did they go ?

[@hareth4326]

Same.

[@kcpacey581]

do we need to learn the equation of The Haber Process?

[@Freesciencelessons]

Definitely. You could be asked it in your exam.

[@jenpeuxplus5691]

our school made this sm more complicated than it needs to be smh

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saamee ;-;

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[@fahadmohammed6546]

Hi sir, I have got a question. Can you do a video explaining "The water cycle", please? Thanks.

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what did u get?

[@izzyplays7976]

I was wondering when you will finish the physics paper 2 and biology paper 2 videos. I have been using your videos for AQA Trilogy science revision and I find them very useful. I have made notes on everything except the ones above. I have my mocks in mid Feb and I was really hoping if you could finish them before it as I really want to do well in them. Thanks and I will be waiting for your reply.

[@Islas533]

He's gonna finish it before the 2018 exams. So probably not before February

[@austinkingsley]

How did you do?

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Tommorow now

[@kuniosaiki]

I love the fact that this vid is exactly 4:20 mins. Lol

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man i loove youuuuu

[@loafee]

Hi can you please make a video on increasing, decreasing functions

[@homeaccount7996]

Hi sir, I’m just wondering if you will be doing a level physics, biology and chemistry videos once you have finished doing the GCSE videos for the new spec? :)

[@Freesciencelessons]

Yes I will be doing Biology and Chemistry A level videos but not Physics as I have never taught A level Physics.

[@homeaccount7996]

Freesciencelessons okay, thank you :)

[@BlazeGaming1905]

Hi, are you planning to finish biology and physics paper 2 before the first set of 9-1 exams this year?

[@austinkingsley]

JDCFC yes

[@mr.sailii]

Thank you

[@euphoria1942]

Can you please explain the equilibrium shift if there is increase and decrease in concentration?

[@momangal1543]

La chateliers principle states that if the concentration of reactants is increased then the forward reaction is favoured to use up more reactants. If the products are increased the backward reaction is favoured to use up products

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It's me again 😀, do you know you science vids, will this cover all the topics I need to know for my final gcse exams this year?

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OriginalLegendz yes

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What is your favourite Science

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how come videos like this and le chatiliers principle aren't included in playlists

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They're triple only, not to confuse

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absolutely pooing myself for tomorrow, chems been a free period for 3 years now i pay the price

[@tricky-hz7hu]

what grade did u gettt

[@joyce5482]

Could you please simplify the term “compromise temperature”

[@Freesciencelessons]

Ideally the reaction would be carried out at a high temperature to increase the rate of the reaction. However, if we did that then the yield would be very low (as the forward reaction is exothermic). So we choose a "compromise" temperature which is not so hot that the yield is low but is not so cold that the rate is low.

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Tomorrow's my exam wish me luck

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Do you do Aqa 9-1?

[@Freesciencelessons]

Yes all my videos are specifically written for that.

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Freesciencelessons yes thx :D

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1:59 Can someone please direct me where it is?

[@ijustwannacommentnotmyreal9814]

Thank you!!!!

[@Ikleel827]

What about increasing the concentration of reactants?

[@LouisHillJ]

it will shift to the right to produce more products as there are fewer molecules on the right side.

[@dahlia5644]

@@LouisHillJ isnt the fewer molecules rule for pressure? so if you increase the conc of reactants more products are formed.

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Hi sir, I need your help in my chemistry please I am very poor on chemistry

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Night before gang

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Link to your revision workbook? It didn’t show in the video? ;-;

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will taking notes learning and knowing it all get me a high grade in triple science for the new gcse triple science new spec 9-1

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PLEASE MAKE VIDEOS FOR A LEVELS

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he does

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anyone is all his aqa 9-1 videos suitable for triple science with the new spec plz respond if u do know

[@Freesciencelessons]

Yes if you're doing AQA triple then you need all the 9-1 videos.

[@silanbozkurt3654]

thank u sooo much if i learn all these videos will it get me a high grade and do these aqa videos come from the science cgp topics

[@Freesciencelessons]

I don't based my videos on the CGP books. I base them on the AQA specification. If you learn my videos, you will have covered the topics that you need. But bear in mind that the exam will require you to APPLY the knowledge as well as simply recall it.

[@silanbozkurt3654]

oh okay this is the new aqa spec for this year??

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late night revision for tomorrow... *sighs*

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[@annamathew5094]

Does pressure also affect rate? As more particles in a smaller space mean more collisions?

[@Freesciencelessons]

Yes that's correct. High pressure = faster rate.

[@Mwangimusictv]

Revising 1 hour before exam 😂

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[@jaffryjaman4951]

hi sir, in the mock exam, I had a question on the definition of internal energy of water. I wrote that it is the energy that the particles of water get. so , would I get the mark for that? it would be really useful for me.

[@jaffryjaman4951]

I meant the energy that the water particles have. sorry.

[@Freesciencelessons]

It depends on what your teacher's markscheme is accepting. Personally, I think you would need to be more specific to get the mark. It's the kinetic and potential energy of the particles in water molecules.

[@jaffryjaman4951]

Thanks , plus I wanted to say that your videos are amazingly amazing, I know it may sound wrong but I don't know any other way to describe them.

[@jaffryjaman4951]

I 've got one last question, because I didn't quite understand what a milliampere was. is it like a 1/1000th of an amp or something else?

[@Freesciencelessons]

Thanks for the comment. Yes a milliampere is a thousandth of an ampere (milli means 1/1000).

[@nou717]

does this help for edexcel aswell?

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What does triple chemistry mean?

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People that have taken Triple Science

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basically its for more advanced students in terms of brain capacity and mental capabilities

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my fucking drilla

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where is your revision workbook

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Sir what’s an equilibrium

[@ajgmz]

When a forward reaction is taking place at the same rate as the backwards reaction (Scientists call this the Dynamic Equilibrium)

[@anonymousyouth7479]

Sir, at 2:35 isn't it the trade-off between the rate of PRODUCTION and the position of the equillibrium?

[@Freesciencelessons]

No it's the rate of reaction. Remember that at equilibrium, the forward and reverse reactions are at the same rates.

[@anonymousyouth7479]

Understand! Thank you for this.

[@tomshawuk]

Hey, im currently in year 10 and the only science subject im struggling wit his physics due to one thing. I just don't understand how to re-arrange formulae. For example say if it gives you the specific heat capacity, then calculate the latent heat by re arranging the formula, i just struggle. Please could you make a video about this or explain in the comments? Thanks!

[@Freesciencelessons]

Hi. I'll try to make a video on that before the exams. However, please be reassured that you are generally not required to rearrange equations that many times in the exams. Usually, they're fairly straightforward.

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Don

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So wait... I do triple science??

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Ask your teacher

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What is yield ?

[@Freesciencelessons]

The yield is the amount of a substance (in moles) that you get compared to the maximum amount that you could have got if the reaction had fully completed. It is usually stated as a percentage.

[@mateusfigueiredo9961]

f

[@Great_sri_lankan]

2021 anyone?

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lmao tell me why is my UNI professor worse than this A level teacher

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Who’s here?

[@harry4901]

This is so confusing omg

[@Great_sri_lankan]

Also, who else says, Heyber process? 😂

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wtf is this

[@Mario-nc3wz]

THE KING, THE LEGEND, THE MASTER. LIVE LONG AND NO MERCY