Talk:Second virial coefficient: Difference between revisions
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:In statistical mechanics angle brackets are used to indicate an average, either a time average or, as in this case, an ensemble average. --[[User:Carl McBride | <b><FONT COLOR="#8B3A3A">Carl McBride</FONT></b>]] ([[User_talk:Carl_McBride |talk]]) 12:17, 28 April 2011 (CEST) | :In statistical mechanics angle brackets are used to indicate an average, either a time average or, as in this case, an ensemble average. --[[User:Carl McBride | <b><FONT COLOR="#8B3A3A">Carl McBride</FONT></b>]] ([[User_talk:Carl_McBride |talk]]) 12:17, 28 April 2011 (CEST) | ||
::Yeah, I know it. But the thing is that the common expression for second virial coefficient doesn't have an averaging in it. Anyway, it is said in the article that "Notice that the expression within the parenthesis of the integral is the Mayer f-function." However [[Mayer f-function]] has no averaging in it. I was asking because recently I was told that something is wrong with the common expression for the second virial coefficient. Indeed I was referred to [http://jcp.aip.org/resource/1/jcpsa6/v23/i4/p617_s1?isAuthorized=no the article by Hill] by I haven't get it yet. | |||
:: And by the way, if this angle brackets mean the average, hence the second virial coefficient should depend on density, i.e <math>B_2(\rho, T)</math>. | |||
Revision as of 05:18, 30 April 2011
Hello! Could someone please explain the meaning of those angle brackets in the expression of B(T)? 178.140.206.61 07:14, 28 April 2011 (CEST)
- In statistical mechanics angle brackets are used to indicate an average, either a time average or, as in this case, an ensemble average. -- Carl McBride (talk) 12:17, 28 April 2011 (CEST)
- Yeah, I know it. But the thing is that the common expression for second virial coefficient doesn't have an averaging in it. Anyway, it is said in the article that "Notice that the expression within the parenthesis of the integral is the Mayer f-function." However Mayer f-function has no averaging in it. I was asking because recently I was told that something is wrong with the common expression for the second virial coefficient. Indeed I was referred to the article by Hill by I haven't get it yet.
- And by the way, if this angle brackets mean the average, hence the second virial coefficient should depend on density, i.e .
