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I would like to propose merging this article and Ideal mixture. The two articles appear to cover very similar topics.-- GregRM 16:55, 2 February 2007 (UTC)
"The vapor phase is an ideal gas so:
This equation is wrong because it is not dimensionally consistent. The chemical potential has dimensions of energy per particle, while RT ln of pressure has units of energy per particle times log of pressure. Obviously, the quantity in the logarithm is meant to be normalized by either the total pressure or some standard pressure, perhaps 1 bar. As written, the equation can't be correct. —Preceding unsigned comment added by ChrisChiasson ( talk • contribs) 22:57, 8 September 2007 (UTC)
It is correct. The dimensions of chemical potential are energy per particle. The dimensions of R are energy per particle divided by temperature. When multiplied by the temperature the term RT yeilds energy per particle and is consistent with the dimensions of chemical potential. The log term is normalized as you said and has no units. A correction might be to explicitly show division by 1 bar for the normalization.
Once I got started, it was hard to resist reworking the page. Hopefully the result flows better and fixes the problems above. 84.92.241.186 ( talk) 13:31, 30 December 2007 (UTC)
In the section consecuences it says that every component of an ideal mix follows Rault's law but that is not completely wright one has to assume the hypothesis that the vapor in equilibrium whith the liquid mixture is formed by ideal gasses. It is true that in practice this is taken for granted in many cases but I think it should be writen in a more precise form. Utanari ( talk) 10:29, 9 September 2008 (UTC)
friends! ARE water +HCl and water + H2SO4 NON-IDEAL SOLUTIONS? IF SO FORCE OF ATTRACTION BETWEEN UNDISSOCIATED MOLECULES OF HCl [OR H2SO4 IN SECOND CASE]AND WATER HAVE TO BE CONSIDERED.IS THIS UNDERSTANDING CORRECT?I MEAN ,EVEN BEFORE THE ACIDS DISSOCIATE IN TO IONS CONTRACTION IN VOLUME HAPPENS,RIGHT OR WRONG? WHAT HAPPENS IF 10 mL OF WATER IS ADDED TO H2SO4 TAKEN AS SOLVET[SAY 90 mL]? —Preceding unsigned comment added by Sarvodayaharish ( talk • contribs) 20:03, 15 November 2008 (UTC)
Is the ideality of this type of solution maintained over all temperature ranges?-- 5.2.200.163 ( talk) 12:23, 11 July 2016 (UTC)
Can an ideal solution exist without obeying Raoult's law?-- 5.2.200.163 ( talk) 12:03, 6 September 2016 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||
|
I would like to propose merging this article and Ideal mixture. The two articles appear to cover very similar topics.-- GregRM 16:55, 2 February 2007 (UTC)
"The vapor phase is an ideal gas so:
This equation is wrong because it is not dimensionally consistent. The chemical potential has dimensions of energy per particle, while RT ln of pressure has units of energy per particle times log of pressure. Obviously, the quantity in the logarithm is meant to be normalized by either the total pressure or some standard pressure, perhaps 1 bar. As written, the equation can't be correct. —Preceding unsigned comment added by ChrisChiasson ( talk • contribs) 22:57, 8 September 2007 (UTC)
It is correct. The dimensions of chemical potential are energy per particle. The dimensions of R are energy per particle divided by temperature. When multiplied by the temperature the term RT yeilds energy per particle and is consistent with the dimensions of chemical potential. The log term is normalized as you said and has no units. A correction might be to explicitly show division by 1 bar for the normalization.
Once I got started, it was hard to resist reworking the page. Hopefully the result flows better and fixes the problems above. 84.92.241.186 ( talk) 13:31, 30 December 2007 (UTC)
In the section consecuences it says that every component of an ideal mix follows Rault's law but that is not completely wright one has to assume the hypothesis that the vapor in equilibrium whith the liquid mixture is formed by ideal gasses. It is true that in practice this is taken for granted in many cases but I think it should be writen in a more precise form. Utanari ( talk) 10:29, 9 September 2008 (UTC)
friends! ARE water +HCl and water + H2SO4 NON-IDEAL SOLUTIONS? IF SO FORCE OF ATTRACTION BETWEEN UNDISSOCIATED MOLECULES OF HCl [OR H2SO4 IN SECOND CASE]AND WATER HAVE TO BE CONSIDERED.IS THIS UNDERSTANDING CORRECT?I MEAN ,EVEN BEFORE THE ACIDS DISSOCIATE IN TO IONS CONTRACTION IN VOLUME HAPPENS,RIGHT OR WRONG? WHAT HAPPENS IF 10 mL OF WATER IS ADDED TO H2SO4 TAKEN AS SOLVET[SAY 90 mL]? —Preceding unsigned comment added by Sarvodayaharish ( talk • contribs) 20:03, 15 November 2008 (UTC)
Is the ideality of this type of solution maintained over all temperature ranges?-- 5.2.200.163 ( talk) 12:23, 11 July 2016 (UTC)
Can an ideal solution exist without obeying Raoult's law?-- 5.2.200.163 ( talk) 12:03, 6 September 2016 (UTC)