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diff --git a/1427/CH6/EX6.9/6_9.sce b/1427/CH6/EX6.9/6_9.sce
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+//ques-6.9
+//Calculating equilibrium constant of a reaction
+clc
+e1=0.77;//emf for Fe(3+)/Fe(2+) (in V)
+e2=0.8;//emf for Ag+/Ag (in V)
+Es=e2-e1;
+n=2;//number of electrons
+//On solving, log10(K) = (n*Es)/0.0592
+K=3.31;//(*10^26)
+printf("The value of equilibrium constant  is %.2f*10^26.",K);