Maybe also put this into the playlist with the initiation propagation termination stuff? That really follows the same line of thought. When I studied 4/14 I had no idea how the radical stuff worked. Great video by the way
I remember a homework problem at the University of Florida that indicated the process in a little more detail. At about 5:00 it looks like what I remember.
Is the NO not a free radical as well after it gets split from the O radicle? If it's homolytic fission I would have thought they'd both have the radical dot.
In the second example for the ozone depletion by nitrogen dioxide, is the dissociation of the bond in NO_2 homolytic fission? If so, why isn't a 'NO radical produced', alongside the oxyen radical; similar to the first example?
Richard Thornley yes but 'homolytic fission is chemical bond dissociation of a molecule by a process where each of the fragments retains one of the originally-bonded electrons', which is the case here
Katrin Eeckelers Ouch - you are completely correct - 21 years of teaching and still learning - luckily everything up to this point in IB was hemolytic fission - I will correct this now - thanks!
Happy to help , by the way i absolutely love your approach to chemistry and use the videos extensively in my Ib revision classes! Do you give workshops for teachers? Thanks richard
Oh my busted by a teacher no less! The IB do not even want me to grade for them but curiously their official text book company offered me a job... So not workshops soon!
Gases in the air are mixed by the wind and Hadley Cells (up and down winds found around the planet). The troposphere (were we live) does not contain gases stratified by density. Helium has a very low density and does leave the planet - but is replaced by alpha particle decay. You have inspired me to make a new type of video - [Apparent} paradoxes for each topic!
@@ibchemvids Dear Richard, Thank you for responding to my question. It is critical that things are not taken at face value and that people ask questions, and therefore deserve an answer. I must applaud you for taking the time to explain and looking forward to your next video. This is the reality, all of us has a huge responsibility to fill our children’s textbooks with the truth, or at the very least make a statement that we think this is how it works, but we are not really sure, and that the theory is x, y and z. I personally have a problem when the "We don't really know" ends up as fact. It is true that the Hadley Cell affect forms streams of air that influence, “and not control” the low-latitude weather patterns. It is perceived that the Hadley Cell generally operates from 0 degrees to 30 degree north and 30 degree south. Strangely, and generally it rises to about 17 kilometers before cooling enough to then flow south and north? Where then does the ozone layer sits in relation to the convectional end of the Hadley Cell. A open, civilized debate does wonders and I thank you for that
![5.3 Ozone [SL IB Chemistry]](http://i.ytimg.com/vi/Q__ZaATWd5g/mqdefault.jpg)
![5.3 Ozone [SL IB Chemistry]](/img/tr.png)
![13.1 Transition Metals, their Complexes and Magnetism [HL IB Chemistry]](http://i.ytimg.com/vi/OC00k_iY36s/mqdefault.jpg)
![R2.2.6 Reaction mechanism, order of reaction and rate-determining step [HL IB Chemistry]](/img/n.gif)
Sound effect just blew my ears at [0:20]
the following ones are so soothing though, he makes up for it.
It made me freaking jump. At least I'm awake now tho
0:26 - 0:31 I understood SO MUCH from this animation
thanks for the lesson
Mr. Thornley !!! You are AWESOME!
Maybe also put this into the playlist with the initiation propagation termination stuff? That really follows the same line of thought. When I studied 4/14 I had no idea how the radical stuff worked. Great video by the way
I remember a homework problem at the University of Florida that indicated the process in a little more detail. At about 5:00 it looks like what I remember.
Is the NO not a free radical as well after it gets split from the O radicle? If it's homolytic fission I would have thought they'd both have the radical dot.
They are both radicals. Mechanism is:
NO2 -> NO· + O·
·NO + O3 -> ·NO2 + O2
·NO2 + O· -> ·NO + O2
The Half-Life 2 cameos make this video perfect.
In the second example for the ozone depletion by nitrogen dioxide, is the dissociation of the bond in NO_2 homolytic fission? If so, why isn't a 'NO radical produced', alongside the oxyen radical; similar to the first example?
Do you mean homolytical fission?
Richard Thornley yes but 'homolytic fission is chemical bond dissociation of a molecule by a process where each of the fragments retains one of the originally-bonded electrons', which is the case here
Katrin Eeckelers Ouch - you are completely correct - 21 years of teaching and still learning - luckily everything up to this point in IB was hemolytic fission - I will correct this now - thanks!
Happy to help , by the way i absolutely love your approach to chemistry and use the videos extensively in my Ib revision classes! Do you give workshops for teachers? Thanks richard
Oh my busted by a teacher no less! The IB do not even want me to grade for them but curiously their official text book company offered me a job... So not workshops soon!
Is it okay to just memorise the general formula or do the specific ones (for CFCs and nitrogen oxides) need to be memorised also?
I would like to know if CFC are heavier than oxygen, if so, then how likely is it that CFC will defy gravity and get all the way up there
Gases in the air are mixed by the wind and Hadley Cells (up and down winds found around the planet). The troposphere (were we live) does not contain gases stratified by density. Helium has a very low density and does leave the planet - but is replaced by alpha particle decay. You have inspired me to make a new type of video - [Apparent} paradoxes for each topic!
@@ibchemvids Dear Richard, Thank you for responding to my question. It is critical that things are not taken at face value and that people ask questions, and therefore deserve an answer. I must applaud you for taking the time to explain and looking forward to your next video. This is the reality, all of us has a huge responsibility to fill our children’s textbooks with the truth, or at the very least make a statement that we think this is how it works, but we are not really sure, and that the theory is x, y and z. I personally have a problem when the "We don't really know" ends up as fact.
It is true that the Hadley Cell affect forms streams of air that influence, “and not control” the low-latitude weather patterns. It is perceived that the Hadley Cell generally operates from 0 degrees to 30 degree north and 30 degree south. Strangely, and generally it rises to about 17 kilometers before cooling enough to then flow south and north? Where then does the ozone layer sits in relation to the convectional end of the Hadley Cell.
A open, civilized debate does wonders and I thank you for that
awesome video. thanks!