Gas Laws - A-level Physics
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- Опубликовано: 20 май 2024
- scienceshorts.net Please don't forget to leave a like if you found this helpful!
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00:00 Boyle's Law
01:28 Charles's Law
01:56 Pressure Law
02:56 Kelvin - absolute zero
05:14 Gas Law
08:58 Usage examples: isobaric, isothermal -
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Best explanation of gas physics ever...
I am a MD, I am 60 years old, I recently started SCUBA diving and I was desperately trying to understand the mechanics and physics of the air in the tanks... Thank you very much...
#molecules
WHY HAVE I ONLY JUST NOW FOUND YOU A DAY BEFORE THE EXAM
Well I guess it will be helpful for inevitable retake year
how did the exams go?
😂,oh sorry
I got so bored of studying physics until I found your channel!
Now I'm binging your videos like a maniac. Love your work
King.
your voice is amazing and your explanations are awesome. you’re saving my a level qualification, one video at a time 😭
😊
@@ScienceShorts same here, ur a godsend, even 3 years after the vids released, ur saving people
@@Its_ThatGuy5185 5 yr*
@@zohaibgulawan90706 years now
Thanks sir, I'm self-isolating at the moment and your videos are meaning that I'm not at a disadvantage at all compared to my classmates. All the best!
I am an Olevels student and woah these topics are covered in A Levels too!! It is so useful!!! My teacher took 2 months to explain Thermal Physics but I have gone through your channel it only took me a day!!
Jesus. H. Christ. you're a legend! Such a great resource and for free, I'll make sure to spam your ad links after exams. 😂
Thank You.
+TheRandomNess Appreciate the sentiment mate, but would appreciate if you don't use Jesus's name like that!
Lol, my bad, got too used to blasphemy.
He’s calling Jesus a legend
Science Shorts great stuff even corrects blaspheme definitely A legend mate!
You are the best physics teacher thanks alot
Dude!!! Seriously! how do I understand what I spent so long trying to figure for the past couple of months, so quick! THANK YOU SO MUCH!!! My Physics paper 2 is on the 9th wish me luck!
same man, gl
Your videos are great and really helpful, keep it up.
Brilliant. An excellent teacher.
I have been watching many videos and finally found the explanation I was looking for. Thank you so much!
excellent explanation really love that pls continue this serie
Thanks a million for your videos !
Your videos are immensely helpful, with well-explained. Any chance that you could make the notes that you do in these explanations available as pdf downloads? We would be happy to pay for them or a subscription fee.
Doing Y13 content for my end of year 12 exams(UCAS predicted grades), god bless you Mr Shorts
Thanks for this video. This really helped me a lot!
We're revising Gases in lessons now and I can't thank you enough for these videos!
+Timo You're welcome!
Can you add your notes in description? That will be really helpful. You are doing well. Good luck!
In the first line should it be n = n, hence pv/t = pv/t since the number of moles in each vessel is the same. I find students find this approach easier to understand especially when you start mixing two gases together. So this then becomes n= n1 + n2 for the mixture of gases...
Thank you so much for making this video!
Does the mole part of the video apply to the 2015 edexcel syllabus?
Listen your videos are great and I really like them all but it's kinda no longer about learning the simple stuff and basic knowledge anymore ...... for example that paper 1 physics just days ago was just ridiculous .... about 45% of the whole paper was unclear , weird and hard core mechanics and mathematics ...... if I would have had not revised and instead would have done M1 and M2 modules in math I would have done better !!! Like I underestand that it's new syllabus and it is suppose to be hard and different from before but .... that was just way too difficult ! But I really appreciate your videos ... thank you very much .
Couldn't agree more 😂 I've never felt soo heartbroken after an exam.
The thing is my school doesn't teach mechanics in mathematics instead we do decision and statistics. Thus I was even worse off :(
It felt like all my effort in revision and past papers were useless
pranish gurung , my teacher and school is going to complain about that exam ... tell your teacher to complain too
+Nima the leagend Nimatheleagend Sorry to hear that mate. Unfortunately physics exams not only require you to understand concepts, but apply your understanding to unseen situations. The only way you get better at that is by practising questions. I do plan to go through past papers once there are more available. As a teacher, I have access to AQA's exampro which has hundreds of questions that I give to my students. You could always ask your teacher to do the same.
Science Shorts . So what's your opinion on the AQA physics paper 1 ? Were your students happy with the exam ?
is this AQA or Edexcel?
and youtubiversity saves the day again! yeaaa😎
These videos are so helpful but I need t stop watching them the day of the tests 😭
Very cool video, you just made everything clear in 13mins but took my teacher a whole week to explain.
A really appreciated video. Thank you very much.
Terry
you make a level physics easy!!! thank you!!
Sir I love u,u are so good in teaching. Wow
Thanks for this video. You are literally a god. I will build a monuement in the future dedicated to the lives you have saved by making this video
Great content!
Extremely helpful 👍
This guy teaches better than my teachers
thx so much, my attendance has been pretty bad lately so this is perfect catch up material.
Sir got my first paper ( a-level) in a week, u saving my life
THANK YOU. IT HELPED ALOT
can Gay Lussac's Law predict temperature in the following case, using T2=(P2/P1)*T1 ?
A room is sealed with pressure inside at T1=300K, P1=23.4PSI.. A valve opens and within a minute drops the pressure inside to P2=15PSI.
very helpful, thank you
thanks this was very concise
And the award for best living human goes to......
Oxygen liquifies at 750PSI, is it only for stability that it is kept under a higher pressure, eg. 5800PSI ?
Great video. I'd like to say, I've heard others say that there can never be no energy. And that there is still kinetic energy at absolute zero but it is at a minimum. And that, if you was to say it has no energy then you would be assuming it's momentum which would go against quantum physics altogether. So what is your take on this?
tallteacher Thank you for the great explanation, it really cleared things up. I just hope when it comes to the exam I'm not penalised for saying it as a minimum amount of kinetic energy.
If I ever get a load of money, I'll make sure I thank you for your time and effort. Top guy!
You got the money yet?
@@oneinabillion654 Soon (TM)
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I came here to thank you for all ur AS physics videos. They were outstanding. You really deserve much much more. AS results coming out in 5days. I'll let u know my results right here.
Hey, how was your result?
@@zayeedhumayun2502 I also heard many people got straight A and only Physics B, so they dropped the subject. This will make A2 grade for Physics even higher as the same strong candidates remains and are gonna take the test with me. Imagine 10 strong candidates vs 10 strong and 5 less strong. The grade will be so much higher man...
@@oneinabillion654 Hey, just read the comment and I think you've done amazing. Wonder where you are now? Are you studying at a university or did you go down a different route? i'm planning to do engineering at Uni but I'd love to hear from someone who is in a similar situation that I think I am currently in. Look forward to hearing from you :)
@@teatime9198 Wow this was me 2 yrs ago? 😂
Went to uni, the usual route. Got into electronics engineering (Math+Physics degree was too exp). 2yrs passed and started to love smth else instead, coding. (So yea, there's some procrastination with sch now)
PS: I've lost interest in electronics
As for coding, I found a "business partner" in the same uni and we're on to making a social media app.
In the short term, making some money tutoring IGCSE and A levels (what else to do?). Yea, probably will use this to fund my startup (social media app) if all goes to plan.
So yea, life progresses and not much has, or I think could've been done in the past 2yrs seeing the situation outside. Stay safe!
All I want to say to u is go for what u like, if u can. Some ppl (like me) don't even get to choose due to financial constraints and disadvantageous location.
And always stay happy and positive. Life is full of surprises. Your goals might shift in a split second. Your dreams might take a different form as u learn more about the world. Keep an open mind and be creative!
And lastly, spend some time with you friends :) I think u know what I mean :D
Excuse me sir, is the pressure suppose to be in KPA rather than PA when using 8.31 as gas constant? A bit confusing here but thanks for the video
Depends on the other units for context.
8.314 kPa-L/mole-K
8.314 kPa-m^3/kmol-K
8.314 Pa-m^3/mol-K
8.314 kJ/kmol-K
8.314 J/mol-k
You are a life saver.
When using the Work done = pV equation how do you know if the work is being done on or by the gas? (Thanks so much for the videos they are brilliant help!)
When the volume increases, the gas is doing work.
When the volume decreases, work is being done on the gas
Work is the area under the PV curve, when V is on the horizontal axis. Since neither P nor V can be negative, this means that the direction of work only depends on which point is your starting point, and which point is your ending point, when finding this area.
expansion = work done by the gas
compression = work done on the gas
Thanks a ton!!😃
awesome video helped soo much
thanks:)
Thank you
I really appreciate your videos and find them super helpful and I don't want to sound like a smart arse but, on your practise question, can't u just use Boyle's law???
My English is so low but o completely understand you. You great for this job.
What a legend
Hey mate, for boyles law didn't you mess up the axis, like isn't pressure supposed to be on the y-axis?
No because both are dependent varriables so it doesnot matter
How does the temperature remains constant in BOLYES LAW
and how to does pressure remain constant in CHARLES LAW
Please help
《 IAmBasic 》 u keep it constant
You make these values constant or assume they are constant
By definition. That's what Boyle, Charles, Amonton, and Avogadro did, in order to do their original experiments to discover these laws.
absolute unit
Doesn't moles have a unit of mol?
It’s 2am and you helped me
textbook for aqa is shite this channel is the only thing that gets it into my head
p,v and t all require diff conditions right? how can you equate all in 1 whole eq?
You aren't equating all in one equation. There is an R-constant to make all the units consistent.
A given sample of gas has a particular temperature, pressure, volume, and number of molecules. The ideal gas law simply combines the proportionalities stated in all four base case laws, and promotes it from a proportionality to an equation by inserting the R-constant or Boltzmann's constant.
Keep this up. Maybe do some past papers, please.
Thanks
perfect
So sad I didn’t find your channel earlier 😭 I would’ve done so much better in my past exams lmao 😂 wish me luck for my thermodynamics exam tomorrow 🤞
Lol
Yesikas?
my man
4:38 it is impossible to go absolute zero
como un buen minero
Who still watches these amazing vedios in 2019?
Is it just me or ....?
2020 here 😂, i bet this be still watched in 2030
y agua ilimitada
También doy comida
lord of the rings one law to rule them all
Thanks a lot
You forgot isochoric, volume is constant
If I'm not mistaken😶
I nearly put in, but it's a term I've never seen in an exam.
@@ScienceShorts
I guess you haven't seen a Nigerian exam then 😂
It's comes out, like.....
LAD UR A LEGUND
Andres Daza está por debajo de todos
hmm, I dont know what to say, I have understood all, just because of +Science Shorts
And isochronic for when the volume is the same :)
Yep - weirdly though, not a word we see crop up in exams!
@@ScienceShorts it's really interesting to see how curriculums change across countries. I am taking a test from this tomorrow, and it's the reason I watched this video! Isochronic is a term that I and my schoolmates will probably have to know how to explain.
For aqa specification we have to use 273.15K
If that were true, you'd be given temperatures to 0.01 degrees Celsius.
After watching this video. I can tell you my teacher is doing a bad job lol
can you come teach at my school pls???
Why is there a k needed?
K is a constant, its added as proportionality factor
My teacher said it’s R guess it’s the same
@@SgtIndustrial R is what we call it when working in molar form. k is what we call it, when counting individual molecules or atoms. It is all ultimately the same constant. The k is called Boltzmann's constant, and the R is Boltzmann's constant times Avogadro's number to put moles in the denominator.
Constant starts with a k in German, and makes the same sound as c most commonly makes, so it is common to see k standing for constant in general. The reason we call it R, is speculated to be from the name of the French chemist named Regnault.
Is it Mr Rees from Malmesbury School?
👍
this gives me ptsd from chemistry class xD
5:19 was that a LOTR pun?
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