Chemistry: Gay-Lussac's Law (Gas Laws) with 2 example problems

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For a gas, temperature and pressure are directly proportional. When you keep everything else constant, as the temperature of a gas goes up, its pressure goes up. As the temperature of a gas goes down, its pressure goes down.
Gay-Lussac’s Law says that when the volume and amount of gas is constant, pressure and temperature are directly proportional. P ∝ T You can write this mathematically as P = kT
We include two example problems worked in full.
If you need more practice for a test, we have a Gas Laws Practice Test available for purchase on our website at www.socratica.com/store (navigate to "digital downloads," or go straight to bookstore.socratica.com/?tags.... This Practice Test has 50 problems (includes true-false, multiple choice, short answer, fill-in-the-blank, & problems worked in full). The test comes with a complete answer key, with explanations.
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LESSON CHAPTERS:
0:00 Definition of Gay-Lussac's Law
1:45 Using Gay-Lussac's Law to compare two situations (before and after)
2:06 Example 1
3:18 Example 2
4:32 Other Gas Laws
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Written and Produced by Kimberly Hatch Harrison
About our instructor:
Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. Kimberly co-founded Socratica Studios.
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#Chemistry #GasLaws #EducationalVideo

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[@srivastavamajjari]

When I was in school I used to confuse about these Gas laws. Now it is very clear. Thank you and continue making such useful videos.

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Thank you. You make my concept

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That's a beautiful mazurka you chose for the intro!

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Thank you so much.

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Great explanation 👌🏻

[@akhilbarackal8427]

how to visualise the reverse, i.e Increasing Temperature with increasing Pressure, keeping Volume and Mass constant ?

[@deepwaters7242]

Yeah I need help rearranging and doing the math, my professor has us calculate only after we isolate the unknown factor.

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Really helpful thanks 😊

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Can we actually change the pressure applied *by* a gas?(to see if temperature is increased or not)

[@mritunjaykumar5713]

Yes

[@maggiewilliamson9184]

Great video!

[@tatamobimba]

Very good videos indeed! I like their simplicity and the clarity used the illustration of the concepts. I have some suggestions though: - Attention should be paid on the units used to resolves exercises and I think SI units would be better since these videos are used internationally. Example pressure units (psi or atm) should be converted into Pascal (Pa). It would me worth mentioning that these processes are alo called isoprocesses (isothermal, isochoric, isobaric).

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hello! where did you get these animations from?

[@mharth6594]

What happens to the temp if you increase the pressure in a tire or balloon?

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Thank you!

[@akhilsamueleldho2444]

Thank you very much ma'am 💖💖

[@deepwaters7242]

First, your descriptions and breakdown were excellent and I was able to get 93%. The only catch is my professor has a different math requirement for calculations, and I honestly don't know how you did that. Still great, liked and subscribed and Thank you very much.

[@Socratica]

We're so glad you've found us!! Would love to hear more about the different style of calculations you're using in your class. We're creating extras for our course on socratica.com these days, so always on the lookout for things that don't fit easily into our main videos!

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This was so helpful! Thank you!

[@Socratica]

We're so glad to hear you found our video helpful! Thanks for watching! :)

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Thank you for watching, Mae, and thank you for your kind comment! We're so glad you've found us. :)

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its very helpful for my project power point presentation,, thank you very much.

[@Socratica]

We're so glad you found our video helpful! Good luck on your presentation!! 💜🦉

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Dear Socratica, what piano music plays at the end of this video?

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***** Chopin Mazurka n. 16. Thank you for watching!

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I have some doubts in this law you solve it thanks

[@CarbonDatingSeries]

I enjoy using your videos as a visual summation of my lectures, however, they would be even better if you included significant figures after solving the equations.

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Very calm voice and beautiful end musci

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Thank you

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A gas occupies a volume of 400cm3 at 0°C and 780 mm Hg. What volume (in litres) will it occupy at 80°C and 780 mm Hg? Help me answer this question please

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can i copy the your video,but no all the full video i only copy the container with molecules inside(before and after) and they are moving can i copy?......because i need that for my project in science(video lesson)

[@Socratica]

Hi Sim Pp! Thanks for watching! You are free to *link to the video* in your presentation, and KZbin lets you start your link from a certain timepoint. We recommend you do this. Good luck with your project!

[@kamogelothokwane8312]

Hello for the sake of clarification i will make the following argument and please correct me. You mentioned that the frequency of the gas particles colliding with the walls of the confinement registered as pressure and i say that is not true. I think what we ought to say is the faster they move around is the more intense they will bombard the walls of the container, hence the force is large compared to when they are moving slowly. The pressure equation does not account for frequency of collisions, rather the force exerted on the walls of the container, and the inner surface area of such a container.

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excellent video and clear voice

[@Socratica]

Thank you so much, Krishwin! We're so glad you enjoyed our video. :)

[@anyaa1211]

Yes it's me again, I want to ask again 🙏🏻, and I hope you answer it, so when the gas are heat it up in the container (you explain in 0:31) the particles in the container will expand too right ?

[@Priyanka_Ponakampalli]

Yes they will and leads to the increse of volume ..That's the reason why volume and temperature are directly proportional to each other

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Thanks allot it was very helpful

[@Socratica]

Thank you for watching and letting us know!! 💜🦉

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really helpful

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[@Socratica]

We're so glad to hear our video helped! Thanks for watching! :D

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@@Socratica hi 5 years later im asking can you please make a video on the avogadros law?

[@SurinderKaur-ko2gi]

Why my textbook says . It states that when gases combine or are produced in a chemical reaction they do so in a simple ratio by volume provided all gases are at same temperature and pressure? What does this statement of gay lussacs law mean and why is this different?

[@sonali1920]

This statement is for Gay Lussac's Law if combining volumes. This law is in the ICSE 10th syllabus

[@asiamohsin2471]

Thanks so much it was so useful. ...💜

[@Socratica]

You are so welcome - we're so glad our video helped! 💜🦉 You might like our new video about the Ideal Gas Law we just released: bit.ly/Ideal_GasLaw

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So helpful

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vary nicee and well explained

[@Socratica]

Thank you for your kind words, and thank you for watching!! 💜🦉

[@Socratica]

We have a Gas Laws Practice Test available for purchase on our website at www.socratica.com/store (navigate to "digital downloads," or go straight to bit.ly/CHEMTESTS). This Practice Test has 50 problems (includes true-false, multiple choice, short answer, fill-in-the-blank, & problems worked in full). The test comes with a complete answer key, with explanations.

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6 yrs later...

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What does psi mean

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Thanks mam 🙏

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Your voice, oh my gosh. I have to watch these videos for a class of mine and your voice reminds me of Haruhi Fujioka from the anime 'Ouran High School Host Club'.

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+jessica whitehill heehee I love Haruhi! "My face feels heavy, and I can't walk in these shoes." Thanks for watching :)

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what if T2 is not given?

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Explaination for combine gas law's please.

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thank you mom for this law

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CAN U MAKE VIDEO ON THERMODYANMICS

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I have a question for u Is pressure is directly proptional to temperate Then in atmosphere why is pressure inversely proportional to temperature And your vedio was great

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Pressure is inversly proportional to temperature. hai boyle's law

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How will the volume remain constant despite the temperature change?

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Very nice video its helpful to us. can you make it in Hindi language?

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good job!!!!

[@Socratica]

+Jose paul We're so glad you enjoyed our video! Thanks for watching! :)

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Thanks u helped me

[@Socratica]

So glad to hear it! Thank you for watching! :)

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thnks

[@SaadAli-vo2cf]

But other than the mistake the video is good and I understood very much from it. Thank you

[@educationgames3068]

I live in Myanmar. I am very interesting your science tutorials. Please let me know which software you use for tutorial? Thank..:)

[@Socratica]

Hello! We're so glad you found our channel! We use a variety of software to make our videos, mainly from the Adobe Suite (Premiere, After Effects, and Audition). Thanks for watching! :)

[@educationgames3068]

ႊThank!

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[@drwijnen1729]

As a teacher, I'm looking for videos that can help my students understand physics. This is a nice video, which seemed useful for that purpose. However, for two reasons I'm not going to direct them here for two reasons, which I think you want to know, so you can avoid them in the future: 1. psi is a horrible unit. Pressure is force per surface. "Pound" is not a unit for force. Also, being used to SI units, I take offense at "square inch" being written as "si" instead of "i²". Because of this I'd just tell my students that Americans use crazy units, so that isn't enough reason not to recommend the video. 2. You write "degrees celsius" as "C°". That's a mistake many students also make. I really don't want them to think this is a normal way of writing it. I also don't understand it: ° is degrees, and C obviously stands for celsius. So what you're writing would be pronounced as "celsius degrees". That's not right. It may seem like a minor issue, but to me it is important that my students are careful with their notation. So I don't want to give them examples which include such mistakes. Anyway, as I wrote I really like the video otherwise, so please keep it up!

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Thank

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His name tho Why

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Jesus Christ ? You serious?

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Because his parents

[@Trisch.]

THANKS B

[@user-ql6em8hf6e]

Far better explanation

[@jayantagogoi6906]

The examples were too easy. Give a tough one next time, just to clear out all the doubts in the same question. BTW, nice video :) and an awesome voice.

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Mr. know all

[@vijayasharma7507]

Mam thank you 🌹

[@Socratica]

Thank you for watching!! 💜🦉

[@Captansayid-z9t]

Exactly

[@SaadAli-vo2cf]

Hi sorry to say but your example 2 for Gay Lussac law was wrong. The answer I am getting is 223.53 k. But you got 223.54 k

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Mam your channel is from which country

[@Socratica]

We are based in Los Angeles, CA, USA! Thank you for visiting, Socratica Friend! 💜🦉

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σωκρατικα???? που κολαει αυτο? (traslation from greek: what do you mean by that???)

[@Blob.fishmusic]

Why don't u just write the English version and not the Greek one if you are going to write the English translation after the Greek one

[@wimcnice]

Very nice, I enjoy all your video lectures. However I think this law should be called Amonton's law.

[@Socratica]

Thank you for bringing this up! In some textbooks they do give credit to both scientists. Definitely a point of contention for so many things in science!

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I came here as I’m in high school 11th class But this all seems to be college things

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DragoTPD : ThePyrusDragon really? I’m learning this in Honors 10th grade chemistry.

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@@pokaay3163 STEM Chem here. 10th grade

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@@pokaay3163 same here mate :)

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Man how old is this girl, I swear she's my age and already doing videos.

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she got her phd in 2003 so you can do the math ig

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What r u trying bro 😂😂

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@@bluehourcore so she's about 38

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@@jshukla2022 lmao bro

[@bluehourcore]

@@adarshraj2583 well that answers op's question , ty :)

[@shrutishekhar3204]

I have q doubt......Why gay lusaac is not applicable to any reactant which is not a gas?

[@Socratica]

You could do an experiment to test your hypothesis!

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*nice*

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Nice job young lady

[@Socratica]

Thank you very much, that is kind of you to say! We're so glad you are watching! :)