Bond Enthalpy
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- The name is bond, bond enthalpy, shaken not stirred! This video explores how you can use bond enthalpy values to calculate enthalpy change of reactions. There is also a look at why we have mean bond enthalpy.
This was made in 2014, is it still the same spec and everything I need for today's AS chemistry? Or have things changed?
Just the same. Most the content is the same tbh. The exam is a bit different though.
why did y remove the - from 834. why dont u do 711 - -834, wouldnt that give me a positive answer
The equation is Energy to break bonds - energy released when formed. When using this equation we ignore any signs apart from the final answer of course!
Quick question, will they give you the mean bond enthalpy values or do you work that out?
+Marike Bredenhann Yes they will give you the bond enthalpy values. They could give you information to work out an unknown value too. Hope this helps!
Allery Chemistry how can I tackle that?
this was an exothermic reaction so would the formula switch if the reaction is endothermic??? or we continue to go for the same formula..just like if we r working on CaCO3 decomposition. it's endothermic ..
Hey sir good morning. I need a help. I did all that you said and got the answer there is a question i dont know what to answer.
The enthalpy change for combustion of ethanol is -1367.3 kj mol. Suggest why this value differs from the value obtained using bond energies.
isnt it because the bond strength slightly differs depending on the compound the bond is in
woah this vid was made almost 10 years ago
why does c c bond differ from f f bond?
different bond length and hence different bond enthalpies
Hi Class.
exothermic was for breaking the bond, not forming.
Bond breaking is endothermic, bond forming is exothermic.
why the tutor so nervous?
Products nd reactions needs to be in gaseous state right?
can you please teach in our college for second year. all of our chemistry teachers have left and well have noone for A2! we need you! you make chemistry easy
Really! That doesn't sound good. The likelihood is that I live nowhere near your college, I live in rural Northumberland. heh
That's like 40 minuets away from my college :(
Sounds like Durham area or the borders as I live in Morpeth. There is a shortage of chemistry teachers nationally let alone the north.
How do you get 235.8? i get 75.5 if i do it in my calculator. 1 1/2 x 159
This was very helpful thank you very much sir. 💜💜
Thank you
You're welcome
Is bond enthalpy and bond dissociation enthalpy the same...?????
Couldn't get your explanation at 1:41 :(
Don't really need to know that tbh. I think he was just giving extra info tbf
Still helpful in 2019
Is this for OCR or AQA?
thankyouuu