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diff --git a/3689/CH11/EX11.4/11_4.sce b/3689/CH11/EX11.4/11_4.sce
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+++ b/3689/CH11/EX11.4/11_4.sce
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+////Variable Declaration
+E01 = +1.36             //Std. electrode potential for Cl2/Cl
+dE0bydT = -1.20e-3      //V/K
+F = 96485               //Faraday constant, C/mol
+n = 2.
+S0H = 0.0               //Std. entropy J/(K.mol) for H+ ,Cl-,H2, Cl2 
+S0Cl = 56.5
+S0H2 = 130.7
+S0Cl2 = 223.1
+[nH,nCl,nH2,nCl2] = (2,2,-1,-1)
+//Calculations
+dS01 = n*F*dE0bydT
+dS02 =nH*S0H + nCl*S0Cl + nH2*S0H2 + nCl2*S0Cl2
+
+//Results
+printf("\n Std. entropy change of reaction from dE0bydT is %4.2e and\nStd entropy values is %4.2e V",dS01,dS02)
+