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Diffstat (limited to '3856/CH10/EX10.4/Ex10_4.sce')
-rw-r--r-- | 3856/CH10/EX10.4/Ex10_4.sce | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/3856/CH10/EX10.4/Ex10_4.sce b/3856/CH10/EX10.4/Ex10_4.sce new file mode 100644 index 000000000..8049c60bf --- /dev/null +++ b/3856/CH10/EX10.4/Ex10_4.sce @@ -0,0 +1,49 @@ +//Calculate the Equilibrium Constant for the reaction and the emf of the cell
+
+//Example 10.4
+
+clc;
+
+clear;
+
+E1=1.72; //Standard Reduction Pontential for cathode in V
+
+E2=0.771; //Standard Reduction Pontential for anode in V
+
+Edes=E1-E2; //Standard Electrode Pontential for Electrochemical cell in V
+
+F=96500; //Faraday's constant in C mol^-1
+
+v=1; //Stoichiometric coefficient
+
+R=8.314; //Gas constant in J K mol^-1
+
+T=298; //Temperature in K
+
+K=exp((Edes*F*v)/(R*T)); //Equilibrium constant
+
+printf("(a)Equilibrium constant = %.1f*10^16",K*10^-16);
+
+C1=50.0*0.10/1000; //Number of moles of Fe ion initially present in mol
+
+C2=10.0*0.10/1000; //Number of moles of Ce ion initially present in mol
+
+V=0.060; //Total volume of the solution in L
+
+x=2.3*10^-20; //Number of moles Ce at equilibrium in mol
+
+C3=(C2-x)/V; //Number of moles of Ce plus 3 ion at equilibrium in mol
+
+C4=(C2-x)/V; //Number of moles of Ferric ion at equilibrium in mol
+
+C5=(C1-(C2-x))/V; //Number of moles of Ferrous 2 ion at equilibrium in mol
+
+C6=x/V; //Number of moles of Ce plus 4 ion at equilibrium in mol
+
+K1=(C3*C4)/(C6*C5); //Equilibrium constant
+
+Edes1=0.771; //Standard Electrode Pontential for Electrochemical cell in V
+
+E=Edes1+0.0257*log(C4/C5); //emf of the cell in V
+
+printf("\n(b)emf of the cell = %.2f V",E);
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