AQA A-Level Chemistry - Energetics Pt. 1 (Enthalpy & Bond Energies)

This is the first of 3 videos that will cover the Energetics portion of the AQA A-Level Chemistry.

This video looks at what enthalpy is, followed by the terms exothermic and endothermic before finishing off looking at how to calculate an enthalpy change using given bond (dissociation) energies.

[kpopff]

9 years down the road and you’re still saving students from failing chemistry you are a genuinee legend

[pulseofmaggots]

I'm in self isolation at the moment and honestly i'm so glad these videos exist because i don't know how to teach myself the AS spec without you

[emmaw]

i swear i don't know how i would cope without these videos, thank you so much for getting me through AS chemistry :)

[borojenxx]

So happy I found this channel! College hasn't been great for me, a death of a friend has left me suffering mentally. But I carried on with the second year which I was regretting as I've missed lots of days and lots of work. And even when I'm there, I just can't seem to learn. Books have helped, but this topic was a real struggle to read on. So I'm glad I took a chance to try finding lessons on youtube and this channel pops up! Thank you!! x

[jacobpatey]

This video is 7 years old and it’s still so helpful, I have an exam today and this is so helpful

[zoejenkins]

Thanks for your videos, I don't struggle with chemistry and it's by far my favourite subject, but this just helps me revise the topics before each class!

[bensykes]

Note for enthalpy diagrams, the Activation energy should be a single arrow not double ended like enthalpy change, I've lost marks for this

[dio_r]

I have an exam tomorrow and this has proven to be a life saver thanks alot!

[ksherine]

thank you for saving my life (quite literally) xxxx

[sanjayraju]

(Change in H) = (Bonds broken) - (Bonds made)

[ssongra]

E RINTOUL the thing about you is that you're quite different from other utubers .some Of them Just reply for the early comments and don't care about comments that are happening if u scroll down. but u reply to everyone and do like a kind of one-one which is nice and this reason u might get so many subs partly also bec u have nice explainable and understandable vids keep up and keep progressing.

[laurieallan]

Thank you so much for making these videos, they're brilliant and you've saved me from failing chemistry

[laleenshehzadikhan]

can u plz do a video on enthalpy change of

[aqsakhan]

8 years later and this video is still helpful to this day, thank you very much

[drspinz]

you're literally my SAVIOUR <3

[jackieyu]

Im doing OCR Chemistry at A Level, do you think I can use these videos to revise?
Most of the course contains this but I'm not sure if there would be slight differences in the mark schemes etc.

[jeeva]

surely @ 16:15 the H-H and O=O is Exothermic because when you break a bond don't you release the heat stored within and when you make a bond (H-O-H) don't you take in energy to form the new bonds.

could you please explain I'm a little confused at this bit?
thank you

[tsitsimarcy]

THANK YOU SIR YOU HAVE MADE MY ROAD EASIER TO CHEMISTRY.

[asraareena]

Thank u for the video... it was so helpful and really simply understable..!!

[nuras]

Really enjoy your videos! However I'm slightly confused, at GCSE we were taught to do "reactants minus products" however now at AS my teacher (who is hopeless) is telling me that it's "products minus reactants" so I'm pretty confused. Also I was never told to add the reactants and products, so I'm pretty stumped. I used to be really good at these questions at GCSE but at AS everyone's confused me -_-