Talk:Charles's law

message: * A graph to illustrate the mathematical relationship.
* An illustration to show the relationship using idealized hard spheres.
-- Beland 07:02, 7 April 2007 (UTC)
replies: text: pfctdayelise (talk) 18:56, 26 July 2008 (UTC)
thread_title:  Illustration requests 

message: I have a question.
The Charles's Law (V/T=k) is only true if the temperature is expressed in kelvin. If it is in Celsius or Fahrenheit, the equation does not hold.
((Add 460 to your temperature in Fahrenheit or Add 273 to your temperature in Celsius.))
The page says Charles did his work around 1787 and Joseph Louis Gay-Lussac proposed the law in 1802. But kelvin was not proposed until around 1850.
I can envision Charles or Gay-Lussac heated or cooled gases and observed their expansion or contraction. But how could they propose that V/T is a constant if the kelvin scale did not exist?Ctchou 14:27, 15 April 2007 (UTC)
replies: text: He expressed it initially in Celsius, but after the derivation of the Kelvin for thermodynamic properties, it was adopted.   ♥♥ ΜÏΠЄSΓRΘΠ€ ♥♥ slurp me! 14:40, 15 April 2007 (UTC)

text: Sure but how could he use Celsius, it doesn't work.
Explanation: 
Charles used celsius, and observed that gases expand when heated, period.
It was Gay-Lussac who did the analysis, and made up an equation, using CELSIUS. It works, but not in the way you'd expect it to work. The Law wasn't expressed the way we know it nowadays.
Gay-Lussac said that the volume of a gas at 0 Celsius should be converted to volume 1 (Unitless). For every increase in celsius, the gas' volume would increase by a factor of 1/273.15.
So, Volume at 0 = 1.
Volume at 1 = 1 + 1/273.15
Volume at 2 = 1 + 2/273.15
Etc.
Gay-Lussac then took two values for volume, volume at 100 and volume and 0, and expressed a law:
V(100) - V(0) = K V(0).
With K being 1/2.7315.
Replacing volumes:
1+100/273.15 - 1 = K (1)
100/273.15 = K
K = 2.7315.
Once again, Gay-Lussac's equation was:
V(100) - V(0) = K V(0).
It wasn't until Kelvin that the law was re-developed in the more practical sense we know it nowadays: V1/T1 = V2/T2.
Hope this helped!
-Sniffity  — Preceding unsigned comment added by 2001:1388:803:11F2:68D0:A498:6EA2:6EFC (talk) 06:17, 15 December 2014 (UTC)
thread_title:  How did Charles express temperature? 

message: The second paragraph states,
"In other more thermodynamics-based definitions, the relationship between the fixed mass of a gas at constant pressure is inversely proportional to the temperature applied to the system, which can be further used by stipulating a system where α represents cubic expansivity of a gas, with θ representing the temperature measured of the system in Kelvins:"
I'm confused with the bolded part of the paragraph, "fixed mass of a gas at constant pressure is inversely proportional to the temperature." ?  So if fixed mass of a gas at constant pressure is inversely proportional to temperature, then as temperature increases, fixed mass decreases? Is this an error? How could fix mass increase/decrease?
The relatioinship is actually between the VOLUME OF THE FIXED MASS OF GAS at constant temperature not with the FIXED mass of gas Nonso 007 (talk) 15:31, 18 October 2011 (UTC)
thread_title:  Question with wording 

message: I have a brief biography of Dalton which claims that Dalton anticipated Gay-Lussac and Charles in 1801.  Can anyone else confirm this? LonelyBeacon (talk) 04:36, 5 May 2008 (UTC)
replies: text: Yes, I had heard that too.  I forgot where though.  —Preceding unsigned comment added by 24.192.25.160 (talk) 22:45, 29 October 2009 (UTC)
replies: text:  Now there's a lot of detail on Daltons contribution but it also says "The basic principles had already been described a century earlier by Guillaume Amontons[3] and Francis Hauksbee.[4]" - Can we have more on what exactly GA and FH described (eg was it only for air) ? - Rod57 (talk) 20:52, 26 November 2015 (UTC)
thread_title: Anticipated by Dalton?

message: can you please give some illustrative problems, then some practice problems..? its our pRoject kc weh...  —Preceding unsigned comment added by 122.2.95.164 (talk) 06:47, 18 November 2008 (UTC)
thread_title:  question pls... 

message: Hello fellow Wikipedians,
I have just added archive links to  on Charles's law. Please take a moment to review my edit. If necessary, add  after the link to keep me from modifying it. Alternatively, you can add  to keep me off the page altogether. I made the following changes:
*Added archive http://web.archive.org/web/20110721015748/http://www.polytechnique.fr/bcx/associations/gaylussac/pages/CommunicationsGL.html to http://www.polytechnique.fr/bcx/associations/gaylussac/pages/CommunicationsGL.html
When you have finished reviewing my changes, please set the checked parameter below to true to let others know.
Cheers.—cyberbot IITalk to my owner:Online 23:45, 27 February 2016 (UTC)
thread_title:  External links modified 

message: Jsnsbbd. Nsndbdbhdjrmrmrurh e hehe 47.31.165.87 (talk) 17:04, 6 December 2022 (UTC)
thread_title:  Thi bahsvdhdhdv jshsvnsksodvd s kaha.  Sm 

message: Hand boiler... are you serious?  This is an article about a scientific law.  This item should be deleted. 51.155.72.50 (talk) 08:39, 1 March 2023 (UTC)
thread_title:  See also