on my energetics test i got 7/50 the first time round, and revising for the upcoming paper 2 as exam i redid my energetics test and got 49/50 thanks to you.
I went from a very low C and from not understanding not a single thing about chemistry to a high A on my retake and I own it all to to you!! Thank youuuu
You Sir, are one amazing person for this! You don't know how much I needed these up to date revision videos! Thank you so much, I really hope I can do well in my exams in July!
Thanks! Hope your revision is going well. Keep up the hard work and I'm sure you will smash that exam. Go and show the examiner you know your stuff! As an examiner myself it's brilliant when you see well crafted answers loaded with key words.
Don't usually use this phrase to describe someone...but you Sir, are a God. I've been watching your videos since March of last year and my grades have increased from an E to an A. I have my exam on Tuesday next week and every time that I panic about something, your videos are very reassuring. I'll keep watching these videos after my exams, just because of the quality of the explanation. Good Work! A*
@@user-xe2vk2xe9g To be honest, for Chemistry, I primarily just kept watching videos like this guy, Eliot Rintoul, etc. I did buy the CGP book for AQA Chemistry but didn’t really use it all that much compared to the kerboodle student book for Chemistry. I mainly just read from the book, and practiced a LOT of questions. I think questions really zone in what the spec requires you to know so doing as much questions as possible will hone your knowledge and you’ll see massive improvement with a LOT of practice I can assure you.
@@nosir1479 Hi so would you say that exam ppq practise is what I should focus on as I'm currently stuck on a B but want an A. I normally just revise by learning the content
Hey - I’m kind of confused on 9:43 as when I did the question I converted the temperature change to Kelvin as that is the appropriate unit but you didn’t so I’m wondering if I’m wrong ??
It makes no difference as 23°C to 57°C has a temperature change of 34°C and their equivalents in Kelvin are 296K to 330k, which has a temperature change of 34K.
It’s Tempreture change, even if you converted it into kelvin the Tempreture change will still be the same, it’s like if you got given 2 tempretures 35degrees and 50 degrees and added 273 onto both, the Tempreture change will still be the same
The change in temp will be the same. The difference between 25C and 20C is 5 If you change that to K then you get 298-293 which equals 5.. therefore making the difference the same
on my energetics test i got 7/50 the first time round, and revising for the upcoming paper 2 as exam i redid my energetics test and got 49/50 thanks to you.
This channel has legit got me from an E to an A in chemistry lol, lifesaver
How long does it take to get from an E to an A omg
@@user-or1tp5bo5q I need to know tooo 😩 are we even doing A-levels tho smh
@@laurenm7832 a few months with enough work
I went from an A to and A* less impressive than yours but still i relate!
@@medicusv61 an A* in chemistry is very impressive
I went from a very low C and from not understanding not a single thing about chemistry to a high A on my retake and I own it all to to you!! Thank youuuu
You're welcome and well done on such a huge jump in grades!
how do you mainly revise if I may ask? any tips? :)
You Sir, are one amazing person for this! You don't know how much I needed these up to date revision videos!
Thank you so much, I really hope I can do well in my exams in July!
Thanks! Hope your revision is going well. Keep up the hard work and I'm sure you will smash that exam. Go and show the examiner you know your stuff! As an examiner myself it's brilliant when you see well crafted answers loaded with key words.
Greta! Do you think you may do more videos on year 13 content such as HNMR and Organic Synthesis?
Thanks!
Hopefully do some Yr2 revision videos like this for next year. All depends on time.
Thanks so much passionate, understanding and intelligent teacher. I found your video very useful. Thanks and remain blessed
Thank you so much again Sir, lifesaver! :) These are the most concise and effective Chem videos on YT :)
Don't usually use this phrase to describe someone...but you Sir, are a God. I've been watching your videos since March of last year and my grades have increased from an E to an A. I have my exam on Tuesday next week and every time that I panic about something, your videos are very reassuring. I'll keep watching these videos after my exams, just because of the quality of the explanation. Good Work! A*
nah dont use it at all. His videos are amazing no doubt at allll about that. But stil,
don't praise him to that extent.
You are a life saviour, can't thank you enough for this
Thank you so much ! Sort, concise and very effective
Thanks! Please share, the more people that benefit the better!
I got an E in my first test. I'm now getting A*s in everything. Gracias para todos.
Excellent!
How do you study? Pls helppp
@@user-xe2vk2xe9g To be honest, for Chemistry, I primarily just kept watching videos like this guy, Eliot Rintoul, etc.
I did buy the CGP book for AQA Chemistry but didn’t really use it all that much compared to the kerboodle student book for Chemistry. I mainly just read from the book, and practiced a LOT of questions. I think questions really zone in what the spec requires you to know so doing as much questions as possible will hone your knowledge and you’ll see massive improvement with a LOT of practice I can assure you.
@@nosir1479 Hi so would you say that exam ppq practise is what I should focus on as I'm currently stuck on a B but want an A. I normally just revise by learning the content
@@zxa3117 defo. My only revision was past paper exam questions lol
Great video, thank you 😀 has the spec changed in the last few years or will this video be fine for 2023 ?
Thanks. No, there has been no change to the specification, so all still relevant. 👍
thank you chris, you inspire me to be a good person so I can go to heaven when I die and meet you there
Hey - I’m kind of confused on 9:43 as when I did the question I converted the temperature change to Kelvin as that is the appropriate unit but you didn’t so I’m wondering if I’m wrong ??
It makes no difference as 23°C to 57°C has a temperature change of 34°C and their equivalents in Kelvin are 296K to 330k, which has a temperature change of 34K.
I don't think you have mentioned the exact definitions of enthalpy change of formation and combustion
In the calorimetry section for the example question why wouldn't add 273 to 34 since the unit for temperature change is K.
It’s Tempreture change, even if you converted it into kelvin the Tempreture change will still be the same, it’s like if you got given 2 tempretures 35degrees and 50 degrees and added 273 onto both, the Tempreture change will still be the same
Thankyou, this topic is so much more easier now.
Glad it was helpful!
When will you doing aqa revison for year 2?
Be*
Can't thank you enough for all the effort you put. Your videos are so goood. 😭❤️❤️
great video just wondering if someone can help me understand this part 17:49 put the numbers in where??
How is is 4 oxygens in the formation of methanol? It's one carbon, 4 hydrogen and one oxygen as far as I can see...?
was thinking the same thing
the elements in their standard states cover all of the reactants, not just the methanol
could you do exam style question videos or could you go through the AS 2016 papers
Will try to but may be difficult with time constraints. I only do this part time.
How come you didn’t change the temp to kelvin when calculating the change in energy @9:38
this is probably irrelevant to you now but temp difference in celsius will still result in the same temp difference in kelvin regardless of conversion
bc there is no need to convert- when temp increases by one kelvin it also increases by one degree celcius so the change in energy is the same.
Hi this question may be a bit dumb but I was just wondering if you could explain why q is negative at 13:45?
because there is a temperature increase so the reaction is exothermic and exothermic reactions have -ve enthalpy change
Can I use this video for CCEA exam board?
Subscribed, thank you for this!!
Thanks for the sub!
I have a question, you said the temperature is measured in Kelvin but you didn't convert it in the example at 9:40
Thank you
The change in temp will be the same. The difference between 25C and 20C is 5
If you change that to K then you get 298-293 which equals 5.. therefore making the difference the same
Extremely helpful
Do we need to know the definition of bond dissociation enthalpy? Thanks Sir - your videos have been extremely beneficial :)
you will learn this in year 2 chemistry topic: thermodynamics. no need to know for now :)
THANK YOU SO MUCH, SO HELPFUL! ;)
Is mean bond enthalpy always positive ?
Yes as energy is always required to break a bond, it's endothermic therefore the change in energy is positive
This helps for wjec too
so helpful!
Thank you so much!!
brilliant !!
Saved my life
At 16:11 how come there is only 2 oxygens? on reactants side?
❤️❤️❤️🔥
You missed a couple of definitions but other than that 👍
Thanks ! NO FOR REAL THANKS LOADS !
you talk a bit fast for me.
Thank you .