Thank you so much i am from Pakistan and i have viewed all indian and Pakistani and all other chemistry channels but no one explained like you 🙌
@isuofficial9240 Жыл бұрын
Really awesome video. I was struggling with this topic for a while. But, now my concept is much more clear.
@cohesivechemistry Жыл бұрын
Glad it helped!
@dipteeshukla711 ай бұрын
BEST. So clearly explained. Thank you so much for making this video!
@cohesivechemistry11 ай бұрын
Glad it was helpful!
@parislondon90142 ай бұрын
Very well explained. I have seen so many videos but non of the video has explained the way you have explained. Thank you sooooo much
@kiyajeon4 күн бұрын
lovely video, had a presentation for my formatives on this. This video helped allot. Thank you < 3
@amberhuo20611 ай бұрын
Very cohesive! Thank you sir! You've gained a new loyal subscriber!
@dubudubuur5 ай бұрын
sir thank you, everything was so clear and it makes sense now! you've just earned a subscriber
@colinvanh2512 жыл бұрын
really nice video. In my chemisrty class i was learning about this subject. Hearing you explain one line spectrum helped visualizing it!
@cohesivechemistry2 жыл бұрын
Glad to hear it helped!
@4shm1t372 жыл бұрын
Go see mems
@shmaptainshmerica61523 ай бұрын
Wow, that is such a clear explanation, thankss :)
@AlexTrusk912 жыл бұрын
I'm in the mid of an MIT lecture on QM here on KZbin, your video was very well of some help to get a better foundation to understand the content there. and you even enriched it
@cohesivechemistry2 жыл бұрын
Glad to hear it helped, Alex!
@vxillity99176 ай бұрын
Thanks so much, my modern physics exam is coming up soon and this helped a lot!
@mahanbabaee89983 ай бұрын
Loved it!
@camilamartins343910 ай бұрын
Aula maravilhosaaaa! Muito obrigada por fazer esses vídeos
@Shekhar.-_-9 ай бұрын
Wonderful explaination,Loved it sir🙏
@blackbear92201 Жыл бұрын
Awesome video. Subscribed. thanks for posting! :D
@mecatx3 ай бұрын
great video and graphics. Please explain visible light waves as hydrogen only has limited electrons therefore limited drop levels. Thank you.
@cohesivechemistry3 ай бұрын
I'm not sure I understand your question. What are you asking?
@patrickurey79832 жыл бұрын
Enriching content and well explained. Thank you sir!
@cohesivechemistry2 жыл бұрын
Good to hear ;)
@DEV.estaAqui_2 жыл бұрын
nice, this video gave me a full clarity
@cohesivechemistry2 жыл бұрын
Glad to hear it!
@matejkunz2719 Жыл бұрын
Well explained! Helped a lot :)
@cohesivechemistry Жыл бұрын
Glad to hear it!
@sujeewaweerasingha15922 жыл бұрын
Thank you so much sir!! This helped me a lot.
@cohesivechemistry2 жыл бұрын
Excellent. Thanks for letting me know!
@catalinaginer9 ай бұрын
thanks goat
@ChandrikaJayamini-pu9sb2 ай бұрын
Nice. Thanks a lot❤
@malwre_android1617 Жыл бұрын
Honestly wonderful. Tysm!
@cohesivechemistry Жыл бұрын
Glad to hear it!
@yoihenbath2 жыл бұрын
Why is the absorption spectrum the opposite of emission spectra?if it goes from 1 to 3 then it must absorb uv light cause it emits uv when it comes down directly from 3 to 1? From 3 to 2then it must be in the visible part and from 2 to 1 then in the uv part. The light with the energy given to the electron is in the uv spectrum and the light emitted is in visible part and the other one is in the uv part,then why is it that that the light missing in the absorption spectrum is the light in the emission spectrum??? Light absorbed is not the same as the light emitted.Is it???
@cohesivechemistry2 жыл бұрын
See if this helps: 1. By changing the experimental setup, we can identify which frequencies of light are absorbed by electrons jumping up to higher energy levels OR which frequencies of light are released by electrons dropping down again. (This page has a useful diagram: casswww.ucsd.edu/archive/public/tutorial/Stars.html) 2. Yes, if an electron absorbs a certain frequency of UV light to jump up from n=1 to n=3 then it must release exactly the same frequency of UV if it drops down to 1 again. 3. Remember that we can only see frequencies in the visible part of the spectrum with our eyes. So although many other transitions are occurring, we can only see jumps from and drops to the n=2 level because the frequencies of those transitions happen to be the ones that relate to the visible spectrum. 4. For any given transition e.g. n=1 n=4, the frequency absorbed are exactly the same.
@rats17404 ай бұрын
thanks a bunch :)
@comfortonuoha805 Жыл бұрын
Very educative 🤗
@cohesivechemistry Жыл бұрын
Thanks for watching!
@yoihenbath2 жыл бұрын
If the photon in the uv is released when it comes down from 6 to 1 then it also means that it absorbed the same photon of that energy which is the uv then why in the absorption spectrum that uv part is not shown and the other colours are shown which were not in the emission spectrum?
@cohesivechemistry2 жыл бұрын
Because we tend to focus on the absorptions and emissions that can be seen with our eyes (the visible part of the spectrum). Absorptions could also be seen in UV and IR parts of the spectrum but more specialist equipment is required.
@yoihenbath2 жыл бұрын
Why is the emission spectra only the visible part ? Why is there no uv or infrared
@cohesivechemistry2 жыл бұрын
1. Because this is the only bit we can see with our eyes. To see the UV and IR emissions, we would need specialised equipment that is not found in schools) 2. There would be UV and IR emissions but we can't see them with our eyes!
@yoihenbath2 жыл бұрын
Does the light we supply contain uv and infrared also?
@cohesivechemistry2 жыл бұрын
The light you will see coming from a normal bulb will probably release a small amount of UV and quite a bit of infrared but remember that we cannot see these frequencies with our eyes.
@comfortonuoha805 Жыл бұрын
@@cohesivechemistry the ones we see are which type of waves??
@cohesivechemistry Жыл бұрын
@@comfortonuoha805 They are the waves which have a wavelength between approximately 400-700 nm (known as 'visible light').
@aureliem176211 ай бұрын
Are you sure the electrons can drop back down to any of the lower levels ? My teacher said that it doesnt because the atom wants to be stable so the electron is always going to drop back down to the fundamental state where n=1
@cohesivechemistry11 ай бұрын
Yes, once we stop passing energy through the gas, the electrons will eventually end up in the ground state. But they can drop one/two/three levels at a time, or drop straight to n=1. This is why we have different series of lines in different regions of the electromagnetic spectrum. Does that clarify?
@aureliem176210 ай бұрын
@@cohesivechemistry thank you, it clarifies ! Thank you for your channel i learn a lot of things
@yoihenbath2 жыл бұрын
Are the electron of the hydrogen atoms in the same initial energy level??
@cohesivechemistry2 жыл бұрын
Yes, in its 'ground state' each hydrogen atom would have 1 electron in the first energy level.
@Xxx876122 жыл бұрын
hello, I have a question I was stuck with this question and even reading the answer, I could not understand it The Q.was do the lines converge at higher frequencies ? what does converge mean and why is the answer correct?? thank you so much!
@cohesivechemistry2 жыл бұрын
'Converge' means that the lines get closer and closer together. And this happens in all atomic emission spectra. The fact that this happens indicates that as we move out from the center of the atom, the energy levels must also get closer and closer. At some point, the energy levels will be so close to each other that we have effectively reached the edge of the atom. Does this help?
@Xxx876122 жыл бұрын
@@cohesivechemistry thank you and what does higher frequency means here??
@cohesivechemistry2 жыл бұрын
@@Xxx87612 A line at a higher frequency means that the electron has released a larger amount of energy - so must have dropped a larger distance from where it started to where it ended up closer to the nucleus.
@sasssss6265 Жыл бұрын
@@cohesivechemistry that explain why tungsten emission spectrum seems really dense at the “blue edge”
@cohesivechemistry Жыл бұрын
@@sasssss6265 Because a tungsten lamp uses tungsten in the solid state (and not the gaseous state like a hydrogen lamp), the atoms are very close to each other. This means their electric fields interact with each other and increase the energy states of the electrons. With more energy states, there are many more transitions seen on the spectrum (which ends up looking more like a continuous spectrum than a line spectrum).
@nickbassan-iw2uc5 ай бұрын
que vídeo BOM
@air8123510 ай бұрын
Niceee video
@edaibrahimoglu1308 Жыл бұрын
thank you so muuuch
@cohesivechemistry Жыл бұрын
No problem.
@mickey49847 ай бұрын
Why is it that the light emitted is mainly red?
@cohesivechemistry7 ай бұрын
That is actually just because of my limited drawing ability. The white light should contain an even distribution of the different colours.
@dominicestebanrice7460 Жыл бұрын
Why do certain English accents mix up their vowel sounds for no reason? I understand that diphthongs and the vowel's position relative to other vowels, consonants and accentuation can affect sound production but GAS & PASS? Ignoring the double S on pass (irrelevant here), why is it GAS but PAHS? Shouldn't it be either GAS & PAS or, if the A is lengthened in PAS, why do we not then also say GAHS? It's like when American's drop the T in Latin but not in Plato, so its LADIN on the one hand but PLATO on the other, even though the T is sandwiched between two vowels in each case! I'll shut up now. Superb video BTW.
@cohesivechemistry Жыл бұрын
Hmm, valid questions but possibly a little beyond my area of expertise 😅
@user-zc7qn7gl4d10 ай бұрын
Why are we using the second energy level
@cohesivechemistry10 ай бұрын
Electrons can drop to any lower energy levels but it just so happens that when an electron drops to the n=2 level in a hydrogen atom, the amount of energy emitted corresponds to visible light.
@jasonbrar7996 Жыл бұрын
What’s the frequency of white light ?
@cohesivechemistry Жыл бұрын
'White light' contains all the frequencies in the visible part of the spectrum so has no specific frequency itself.
@boonaaoromoo16902 жыл бұрын
how to change if get n=3.78 when we calculate
@cohesivechemistry2 жыл бұрын
Can you explain your question in a bit more detail? What are you trying to calculate and what data are you given?