GCSE Chemistry - Fuel Cells #45

This video covers:
- What fuel cells are
- How they work
- How to write half equations and full equations for fuel cells
- The pro's and con's of hydrogen fuel cells

Exam board specific info:
AQA - Separate/triple science only
IGCSE Edexcel - Not in your course
Edexcel - Separate/triple science only
OCR 21st Century - Separate/triple science only
OCR Gateway - Separate/triple science only

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[BlindMonk]

Former PEM fuel cells engineer here.

You did a really good job explaining the principles of Proton-Exchange Membrane fuel cells, and the animation are really clear. Well done!

When noting the cathode and anode are in reverse, viewers may find it helpful to know why.
Electrolysis is essentially the reverse reaction of a fuel cell. Some (but not all) fuel cells can even be run in reverse to create hydrogen again.

[buditae]

This guy just saved my IGCSE exams
Keep doing what you're doing. Thank you so much😁

[jemjem]

I am literally going to fail chemistry wtf

[aaisharahman]

Your animations are really good and easy to understand

[gracek]

You are amazing THANK YOU. I’ve been reading so many articles on fuel cells trying to figure them out for an independent project but wow no one explained better then you just did.

[decacomania_]

i hope that a question from this topic comes up cuz you explained it excellently

[daisysearle]

i love your animations! for me visual is the best way to understand somthing (i often zone out in free science guys lessons)

[nivethaselvam]

That adults also need pictures to understand something lucidly was explained in the little prince and you are doing a great job in that aspect.Thank u so much for making me understand this concept so well through pictures.

[IslamicCop]

Well-made video. Couldn’t understand from the book but this sure helped. Thanks, keep it up. Peace be upon you.

[Cognitoedu]

- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[armeenali]

This video helped so much!!! The best part was that they explained how to answer a question if it comes in an exam.

[adamvoon]

freaking goated man u savin me just before my exam tmr

[khadijakhan]

You really covered up, what my teacher deliberately ignored, in the best way! THANKS !

[rosawhalley]

I love your videos so much and find them infinitely helpful. I am also really enjoying your website with the lessons but I was wondering if all the chemistry lessons could have videos attached so it made it easier to access?

[LGC]

Am I going crazy or aren’t the half equations like this:
Anode - O2 + 2H2O + 4e- —-> 4OH-
Cathode - 2H2 + 4OH- —-> 4H2O + 4e-

Bitesize says this. I have also seen exam questions say this, but you and various other sources like Seneca say the one in the video. Also your makes much more sense, I don’t know what this other one is about.

[tanvi.k.]

Thank you so much for this!! One question, though. How does the Hydrogen ions move towards the cathode if both are positively charged?

[ismaaeelmohungoo]

Bro made a video like I would actually pass dat shit

[harsonpakeer]

thank you, but im kind of confused, isnt the anode the positve and cathode negative like in electrolysis? please respond :), do i have to know why they are differne for gcse

[Imogen_V]

Cognito has saved so many ppl's GCSE s

[Kiddo.]

Thnx for explaining fuel cell and u kept it simple and explained it with a ease❤