Talk:Activity coefficient

message: Can someone provide information on how activity coefficients demonstrate either positive or negative deviations from Raoult's Law? 171.64.133.56 22:53, 24 February 2006 (UTC)
thread_title:  Deviations from Raoult's Law 

message: This article, which is indirectly referenced from the pH value article, is in desperate need of more explanation.  We need an example where the activity coefficient is given as an actual number, not just relative to other activity coefficients.
Am I right in guessing that the normalisation is such that the activity coefficient approaches one as the mixture is diluted?
The article does not currently give a definition of the term.
RandomP 16:16, 19 September 2006 (UTC)
thread_title:  Examples; normalisation 

message: I hope that the re-write addresses these issues, amongst others.Petergans 10:39, 23 July 2007 (UTC)
thread_title:  Article re-written 

message: Info on this aspects (related to those from above) should be mentioned with examples of practical importance  refering to sugar - electrolytes solution of medical use and salting in and salting-out.--188.26.22.131 (talk) 15:11, 25 September 2012 (UTC)
replies: text: A link for this case .--85.121.32.1 (talk) 13:09, 18 July 2016 (UTC)

text: An analysis of ternary systems at WP:RD/S Wikipedia:Reference_desk/Science#Ternary_ideal_mixture_obtained_from_non-ideal_binaries.--82.137.9.237 (talk) 12:31, 25 October 2017 (UTC)

text: Link update for the above sources at RefDesk Archives: Wikipedia:Reference_desk/Archives/Science/2017_October_21#Ternary_ideal_mixture_obtained_from_non-ideal_binaries.--82.137.8.95 (talk) 15:05, 29 October 2017 (UTC)
thread_title: Ternary solutions - electrolyte - non-electrolyte interaction 

message: The two conventions and their mutual conversion should be described.--188.26.22.131 (talk) 15:00, 25 September 2012 (UTC)
thread_title:  Conventions- symmetric and asymmetric 

message: It would be useful to include aspects concerning higher concentration ionic solutions activity coefficients and how is the deviation from ideality separated from the total dissociation assumed by lower concentration theories like that of Debye - Huckel.--188.26.22.131 (talk) 09:48, 19 August 2013 (UTC)
replies: text: You are right. In fact Davies equation, Bromley equation, SIT theory and Pitzer equation all address this issue, but have not been linked here. I am too busy at the moment to attend to this. Petergans (talk) 10:36, 19 August 2013 (UTC)
thread_title:  Higher concentrations ionic solutions 

message: The article should specify the connection between conductivity (electrolytic) and the thermodynamic activity coeffient.--188.26.22.131 (talk) 12:58, 9 September 2014 (UTC)
thread_title:  Link to conductivity (electrolytic) 

message: lg and log_10 are symbols for the same thing: decadic logarithm. Please use in your article either lg or log_10, but not both together.— Preceding unsigned comment added by DD dev (talk • contribs) 11:14, 1 January 2016 (UTC)
thread_title:  lg or log_10 

message: The article does not address the determination of this quantity for the undissociated part or fraction of a dissolved ionic compound. The activity coefficient of an electrolyte as a measurable quantity cannot be defined in terms of unmeasurable quantities like individual activity coefficient of the ions.--82.137.13.174 (talk) 08:41, 20 July 2016 (UTC)
thread_title:  Undissociated electrolyte 

message: What is the connection of this quantity to ion transport number?--82.137.11.146 (talk) 14:17, 7 September 2016 (UTC)
thread_title:  Link to ion transport number 

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thread_title:  External links modified 

message: I notice that there are some scientific articles re the determination by these spectroscopic methods in the list of citing (2, 3, 7, 10, 12, 14, 24, 32, 33) articles of the article from .--109.166.133.217 (talk) 19:54, 27 January 2020 (UTC)
thread_title:  Determination by NMR, Raman and IR spectroscopies