Andrew McKinley
Andrew McKinley
  • Видео 20
  • Просмотров 266 255
Quantum Chemistry 7
Seventh and final content video for the Quantum Chemistry course
Table of Contents:
00:07 - The story so far…
00:57 - The Hydrogen Atom
01:28 - Energies in hydrogen atom
02:16 - Particle in a 3-D box
03:56 - Visualising (r,φ,θ)
05:39 - A spherical harmonic?
06:24 - Atomic orbitals
07:14 - Radial distribution functions
08:33 - Radial and angular combined
10:42 - The Quantum Atom
11:32 -
12:09 - The Quantum Atom
12:31 - Quantum Chemistry: A summary
13:21 - Models in Quantum Chemistry (1)
13:58 - Models in Quantum Chemistry (2)
Просмотров: 8 498

Видео

Quantum Chemistry 6
Просмотров 6015 лет назад
Table of Contents: 00:17 - Vibrational quanta 00:59 - The Quantum harmonic oscillator 01:29 - The Quantum harmonic oscillator 02:17 - Revisiting the Schrödinger equation 03:21 - Vibrational wavefunctions 04:53 - Vibrational probabilities 05:54 - Application to Diatomics
Quantum Chemistry 5
Просмотров 7185 лет назад
Fifth video for the Quantum Chemistry course Table of Contents: 00:06 - A quick recap… 00:37 - Continuing the story 01:26 - Rotations: Particle on a ring 03:03 - Identify the boundary conditions 04:45 - Boundary conditions: Continuity 05:51 - Other exceptions 07:13 - General wavefunction for rotations 08:20 - Visualising cyclic wavefunctions 10:13 - Energy levels in rotational systems 11:24 - E...
Quantum Chemistry 4
Просмотров 6225 лет назад
Live link 1: academo.org/demos/3d-surface-plotter/?expression=sin(1*x)*sin(0.5*y)&xRange=0,6.28&yRange=0,6.28&resolution=50 Live link 2: ruclips.net/video/v4ELxKKT5Rw/видео.html Table of Contents: 00:11 - Extending to two dimensions 01:14 - 2-D wavefunctions to calculate 08:48 - Particle on a 2-D surface 09:25 - Particle on a 2-D surface 09:39 - Particle on a 2-D surface - Lx > Ly 10:42 - Parti...
Quantum Chemistry 3.5: Normalising the wavefunction
Просмотров 5435 лет назад
Supporting video showing how to normalise a wavefunction Table of Contents: 00:05 - Locating the particle 01:03 - Normalise the wavefunction 1 01:57 - Normalise the wavefunction 2 03:17 - Normalise the wavefunction 3 05:21 - The final wavefunction
Quantum Chemistry 3
Просмотров 7065 лет назад
Third video for the Quantum Chemistry course Table of Contents: 00:10 - A quick recap… 00:58 - Energies in the box 02:15 - Energies in the box 02:36 - Energies in the box 04:46 - Progression of energies 05:44 - Application to molecular systems 06:38 - Calculation 10:06 - Locating the particle 12:06 - Finding the particle 12:32 - Probability of finding the particle 13:55 - Particle in 1-D box - ...
Quantum Chemistry 1
Просмотров 1,9 тыс.5 лет назад
Table of Contents: 00:06 - Hydrogen line spectra 00:33 - Hydrogen emission 01:09 - A general solution 01:33 - Energy Quantisation 01:59 - Energy Quantisation 02:10 - The Bohr atom 02:50 - An Overview of Quantum Chemistry 03:31 - A quick recap… Waves and Particles 04:10 - Describing particles as waves 05:05 - The wavefunction in Quantum Mechanics 06:30 - The wavefunction: Interpretations 07:38 -...
Molecular Driving Forces 7
Просмотров 1 тыс.5 лет назад
Final flipped video for the Molecular Driving Forces course Table of Contents: 00:08 - Free Energies 00:56 - Helmholtz Free Energy 01:38 - Constant volume entropy consideration 02:42 - Variable volume example 04:20 - Variable volume example 05:07 - Variable volume example 05:57 - Variable volume example 06:34 - Gibbs Free Energy 07:05 - Gibbs Free Energy 08:03 - Balancing entropy and enthalpy 0...
Quantum Chemistry 2
Просмотров 8215 лет назад
Table of Contents: 00:08 - Translational motion 01:03 - Picturing the particle in a box 01:48 - About the “box” 02:41 - About the “particle” 04:14 - Energy considerations 05:01 - Quick aside: Eigen functions 05:43 - Some practice… 06:40 - Solving the Schrödinger equation 07:34 - Which function to use? 08:33 - Visualising the wavefunction 09:31 - Quantisation of wavelengths 11:17 - Summary
Further Physical Chemistry: Electrochemistry session 8
Просмотров 36 тыс.5 лет назад
Further Physical Chemistry: Electrochemistry session 8
Further Physical Chemistry: Electrochemistry session 4
Просмотров 14 тыс.5 лет назад
The fourth video supporting the electrochemistry content from Further Physical Chemistry. This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:09 - Factors affecting ion transport 00:51 - The Electric field, E 01:45 - The Electric field, E 03:10 - Drag forces 04:10 - Ionic drift speed...
Further Physical Chemistry: Electrochemistry session 9
Просмотров 20 тыс.5 лет назад
The ninth video supporting the electrochemistry content from Further Physical Chemistry. This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:05 - The overpotential: A recap 00:50 - Overpotentials and galvanic cells 01:41 - Cell performance with overpotential 02:39 - Cell performance ...
Further Physical Chemistry: Electrochemistry session 6 SHORT
Просмотров 6 тыс.5 лет назад
This is the sixth video supporting the Electrochemistry topic in Further Physical Chemistry; it does not include the full walkthrough calculations. The full video is available here: ruclips.net/video/1pVmm_QvVqw/видео.html . This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:07 - El...
Further Physical Chemistry: Electrochemistry session 5
Просмотров 12 тыс.5 лет назад
This is the fifth video supporting the Electrochemistry topic in Further Physical Chemistry. This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:08 - What is “Potential” 01:53 - “Potential” vs “electron” energies 02:43 - “Potential Difference” 03:29 - Electrochemical potential 04:33 ...
Further Physical Chemistry: Electrochemistry session 10
Просмотров 87 тыс.5 лет назад
The tenth video supporting the electrochemistry content from Further Physical Chemistry. This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:10 - Voltammetry: I vs E 01:16 - Voltammetry principles 02:44 - Concentration polarization 1 03:25 - Concentration polarization 2 04:03 - Conce...
Further Physical Chemistry: Electrochemistry session 3
Просмотров 13 тыс.5 лет назад
This is the third video supporting the Electrochemistry topic in Further Physical Chemistry. This course is based heavily on my undergraduate learnings from CP Wilde, Department of Chemistry, Imperial College London in the early 2000s! Table of Contents: 00:05 - Ions in solution 00:41 - Mobility in solutions 01:33 - Electrical concepts 02:43 - Solution conductivity 03:30 - Measuring conductivit...
Further Physical Chemistry: Electrochemistry session 7
Просмотров 15 тыс.5 лет назад
Further Physical Chemistry: Electrochemistry session 7
Further Physical Chemistry: Electrochemistry session 1
Просмотров 25 тыс.5 лет назад
Further Physical Chemistry: Electrochemistry session 1
Further Physical Chemistry: Electrochemistry session 6 FULL
Просмотров 9 тыс.5 лет назад
Further Physical Chemistry: Electrochemistry session 6 FULL
Further Physical Chemistry: Electrochemistry session 2
Просмотров 14 тыс.5 лет назад
Further Physical Chemistry: Electrochemistry session 2

Комментарии

  • @MajraKosovic
    @MajraKosovic 3 месяца назад

    Can we get this lectures in PDF?

  • @sergiosolano4232
    @sergiosolano4232 3 месяца назад

    Great video!

  • @JutawatH
    @JutawatH 7 месяцев назад

    you are good at teaching. thank you.

  • @ireshasooriyaarachchi6926
    @ireshasooriyaarachchi6926 8 месяцев назад

    Really good series. Thank you very much

  • @usersaif001
    @usersaif001 9 месяцев назад

    Please any one help me in solutions this problem One gram of zinc metal dissolved in a solution of hydrochloric acid with a concentration of 6 molars, dilute it to 250 ml. Take 25 ml of it into a polarography cell, and the polarogram shows a voltage wave at -0.65 volts (assigned to Cd impurities), a diffusion current equal to 32 milliamps. If we add to the cell containing the zinc solution 5 ml of Cadmium chloride concentration is 0.0005 molar, and when taking a second crystalogram, the diffusion current was 77.5 milliamps. Calculate the weight percentage of cadmium impurities in zinc metal.

  • @iagojacob3785
    @iagojacob3785 10 месяцев назад

    Hello! Through what email should I contact you?

  • @shaheertanveer7994
    @shaheertanveer7994 10 месяцев назад

    Thanks for this impressive explanation. You delved into some intricate details about all the parameters.

  • @bernardomonteiro3470
    @bernardomonteiro3470 10 месяцев назад

    thanks bro. my teacher copyed you

    • @bernardomonteiro3470
      @bernardomonteiro3470 10 месяцев назад

      we have your lessons here in my university

    • @aw_mckinley
      @aw_mckinley 10 месяцев назад

      No worries; if you read the description, this is based on what my lecturer taught me! Hope it is useful for you

  • @elhamsheikhzadeh9551
    @elhamsheikhzadeh9551 11 месяцев назад

    Excellent and very useful

  • @Nebulas_starrs
    @Nebulas_starrs Год назад

    did you swat a fly at 9:13???

  • @travman2863
    @travman2863 Год назад

    Try doing these calculation potentials with the electrode metals that have been altered with what's described in this video ruclips.net/video/mQdoKaNI8Ko/видео.htmlsi=JUulVLleH_1wGfey didn't want to give away the keywords above watch the video and find out.🤯 FYI it's mind-blowing stuff and fun calculations to do I've done it.😂

  • @TheBigBanggggg
    @TheBigBanggggg Год назад

    @ 0:57 L = n . (1/2 . wl) and so wl = 2L / n. Knowing that k = 2pi / wl = 2pi / (2L / n) = n . pi / L

  • @jacobvandijk6525
    @jacobvandijk6525 Год назад

    @ 1:33 "No PE"? I think the condition is that the PE = constant. Here (1:57) the PE is not zero (and it can still move in the x-directions)! And yes, PE = 0 = constant.

  • @TheBigBanggggg
    @TheBigBanggggg Год назад

    Fine presentation. Chapeau!

  • @seraphpegasus
    @seraphpegasus Год назад

    Thanks for the video! At 8:03, do you mean we get "a faster and faster deviation from *zero*" rather than "theory"? And I believe at 8:53, at high I, you intended to say that "*γ* becomes greater than 1" rather than log(γ) - am I correct?

  • @romifunfact5.5
    @romifunfact5.5 Год назад

    Difficult to understand your speed is fast

  • @dannis5165
    @dannis5165 Год назад

    great video! its very helpful to understand the concepts im currently studying

  • @takayokii1998
    @takayokii1998 Год назад

    Thanks for making this video! This is very helpful

  • @adampotter9331
    @adampotter9331 Год назад

    Incredible videos supplied for free, just started grad school and these videos are more helpful than classes or textbooks in getting caught up in the field

    • @adampotter9331
      @adampotter9331 Год назад

      You're also great at posing and responding to all the rhetorical questions I'm thinking

  • @KPHDMEMANISHMISHRA
    @KPHDMEMANISHMISHRA Год назад

    Superb, Excellent videos, please keep up the good work by uploading such videos.

  • @beyzayigit1912
    @beyzayigit1912 Год назад

    Thank you!!

  • @husseinsalman8165
    @husseinsalman8165 Год назад

    Hello Dr... Can you write your e mail please... Thhank you

  • @husseinsalman8165
    @husseinsalman8165 Год назад

    Please can you send your email address.

  • @diamondli7293
    @diamondli7293 2 года назад

    Very good and benefit me understanding exchange density

  • @РусланДементьев-с7п

    Thank you very much!

  • @이민성-f9w
    @이민성-f9w 2 года назад

    I'm from korea and I'm really appreciating your series, but i have one questions. you said that only neutral species are in subjected to diffusion, then aren't there any diffusion of ion? if there is concentration gradient of Cu2+, then there is no diffusion of Cu2+ but only migration occurs?

    • @aw_mckinley
      @aw_mckinley 2 года назад

      Yes; I can see that is confusing. Diffusion is driven solely by the concentration gradient. While a concentration gradient of ions can (and indeed does) exist, ionic migration moderated by an electric field far outweighs this; an imposed electric field causes ionic migration (cations to cathode, anions to anode) and in fact *creates* a concentration gradient of ions; any diffusion process is therefore eliminated. Remember that the the ions themselves create an electric field which, in the absence of the imposed field, will cause migration of the ions. Hope that clears things up - Glad you're finding the videos useful.

    • @이민성-f9w
      @이민성-f9w 2 года назад

      @@aw_mckinley Your explanation really touched me. I cannot be more grateful than this Thank you very very much.

    • @satishrapol3650
      @satishrapol3650 Год назад

      @@aw_mckinley I had the same doubt and your explaination here that the migration outweighs diffusion is helpful. I am reading literature related to DFN model of lithium ion battery, which has partial derivatives with linking diffusion and migration(not surely if its exactly like that I am still trying to understand), so my question is the movemnet of lithium ion with its solvation shell will be considered as diffusion or migration? Does lithium ion with its solvation shell carry any charge or not?

  • @MrDomingoleung
    @MrDomingoleung 2 года назад

    13:12 i like how he says potential source of confusion and its about electric potential lol

  • @selinaamatya3593
    @selinaamatya3593 2 года назад

    So helpful - I’m doing degree level chemistry and this is AMAZING. Thank you!

  • @evardmuts
    @evardmuts 2 года назад

    Am doing Fuel Cell research paper, as an Engineering Major , the part about Exchange current density and Charge transfer is most confusing. Most of research paper just focus on other operating conditions and how they affects performance but very few mention CTC I have watched this video every time I read something confusing and this video help me understand the chemistry side. Thank you.

  • @emmanuelonyekaezeoba6346
    @emmanuelonyekaezeoba6346 2 года назад

    Hi Andrew, thank you for this series. It has provided me with better understanding in electrochemistry. I have a doubt on a statement you made in the 3:00-3:15 of the 10 session where you said that the concentration of a specie in the system can influence the rate of reaction. I argue that this may not necessarily be the case giving that the concentration has no role to play on the Gibbs free energy, exchange current density and standard potential. Could you please shed more light please.

  • @winproduction7585
    @winproduction7585 2 года назад

    THank you sir

  • @skl3328
    @skl3328 2 года назад

    6:34 the equation is wrong

  • @skl3328
    @skl3328 2 года назад

    5:10 I dont think the rate increases when the area of electrode becomes larger. Reaction rate is independant to the area.

  • @skl3328
    @skl3328 2 года назад

    Thank you for this amazing lecture

  • @h-bar8649
    @h-bar8649 2 года назад

    Nice video for a high-level introduction - but since this is called "7", would there be 6 videos before this? They do not seem to be around or were they just not recorded/uploaded?

  • @mattkunq
    @mattkunq 2 года назад

    Very nice video. Thanks for the upload. I just had a concern about the use of the mass transport limitation of the oxidized species as the main reason for the formation of a peak. I think CV peaks are more traditionally taught with the reactants being the mass limited species. While ofc both can be true depending on the their diffusion coefficients and charge, I think the explanation of the CV peak using a reactant mass transport limitation is better. This is because it is easier to transfer conceptually to different electrochemical processes such as CV for electroplating processes. What are your thoughts on this?

  • @denisepoire13
    @denisepoire13 2 года назад

    Amazing Video!

  • @mikikook
    @mikikook 2 года назад

    Very clear and helpful! Thanks a lot

  • @tanushreeghosh6383
    @tanushreeghosh6383 2 года назад

    so beautifully explained, thankss

  • @SixTough
    @SixTough 2 года назад

    I don't understand how your reagent is reduced from cation to neutral but then oxidized from anion to cation. Also the part at 9.23 I am not sure if is worded right? That said thank you for your insight, this is excellent

    • @aw_mckinley
      @aw_mckinley 2 года назад

      Glad you have found the videos useful. In the video we first look at the cathode process (reduction of cations to uncharged species) in the example of linear voltammetry; but in the second part when exploring cyclic voltammetry in depth we look at the anode process (oxidation of anions to uncharged species). Note that in both cases they are either oxidised or reduced to the uncharged species - I can't see anywhere that I reference oxidation from the anion direct to cation; this would involve a two-electron process and the kinetics would be _very_ different. Remember that we are only interested in processes happening at one electrode (while a counter electrode completes the circuit); at one potential we will be oxidising anions, and when we lower the potential we will start reducing cations. These are not necessarily positive or negative potentials, simply different levels of potential. We could plan to do our CV sweep between 0.2 V and 1.4V; never going into a negative potential region, but we may still get reduction happening. What we see very much depends on our experimental set up and the system we are interested in. RE 09:23 I'm not sure what you are getting from the video, so not sure where the confusion comes from. The background to the processes is that the negatively charged anion migrates across the electric field gradient to the anode, where it is oxidised to an uncharged species. This then diffuses across the concentration gradient away from the anode. So at point E, the concentration gradient causes diffusion to be faster than the electric field causes for migration of the anions. I realise this is just a re-wording of what I say in the video, so if this doesn't help to clear things up please do let me know.

    • @SixTough
      @SixTough 2 года назад

      @@aw_mckinley hey, thank you for the reply. It turns out you are completely right, I assumed the oxidation and reduction examples were for the same compound. At the point E as far as I understand we get a reverse current due to a reduction process and the oxidation has already stopped. I think I assumed the oxidized species are nil at bulk solution so I imagined the diffusion backwards.

  • @sumedhagupta992
    @sumedhagupta992 2 года назад

    Tomorrow I have my project work presentation, and i have to describe cyclovoltametry their....... I saw various video on topic.. But i can say this is the nicest explanation in compact way , I have ever seen.... Thank you so much sir Huge respect for you - from India🇮🇳

  • @masheerulhaq2467
    @masheerulhaq2467 2 года назад

    Can I get the pdf of your slides, Please I need them

  • @flaviajacob1954
    @flaviajacob1954 2 года назад

    Please share the ppt sir

  • @flaviajacob1954
    @flaviajacob1954 2 года назад

    Please share the ppt share

  • @flaviajacob1954
    @flaviajacob1954 2 года назад

    Please share the ppt sir

  • @flaviajacob1954
    @flaviajacob1954 2 года назад

    Please share the ppt sir

  • @flaviajacob1954
    @flaviajacob1954 2 года назад

    Sir can you please share the ppt of this video