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 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum May 7th 2014, 05:22 AM #1 Junior Member   Join Date: Mar 2014 Posts: 3 Margules Equation Parameter I'm trying to construct a Txy phase diagram for a binary system at a given P=1bar. Given the Antoine Equation Coefficients, I have attempted to create an excel spreadsheet with x_a, x_b, p_a(sat), p_b(sat), P, y_a, y_b and T Where p_a(sat)=exp(Aa-Ba/(T+Ca)) p_b(sat)=exp(Ab-Bb/(T+Cb)) p_a=x_a*p_a(sat)*gamma_a p_b=x_b*p_b(sat)*gamma_b P=p_a+p_b y_a=x_a*p_a(sat)*gamma_a/P For T, i used the goal seek function in excel to calculate T to give P=1 bar. I know from two suffix Margules equation that A=RT ln (gamma)/x_a^2 But i'm not sure how to get the Margules Equation Parameter A. Can anyone please give me some guide?  Tags equation, margules, parameter Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post guaiamum Thermodynamics and Fluid Mechanics 7 Aug 1st 2016 04:26 AM petdem Thermodynamics and Fluid Mechanics 8 Feb 15th 2010 05:51 AM ipinkbaby Kinematics and Dynamics 1 Jun 14th 2009 12:31 AM asi123 Quantum Physics 2 May 29th 2009 04:23 AM AAKhan07 Quantum Physics 1 May 28th 2008 02:27 PM