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Diffstat (limited to '3856/CH8/EX8.5/Ex8_5.sce')
| -rw-r--r-- | 3856/CH8/EX8.5/Ex8_5.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/3856/CH8/EX8.5/Ex8_5.sce b/3856/CH8/EX8.5/Ex8_5.sce new file mode 100644 index 000000000..70caf6aee --- /dev/null +++ b/3856/CH8/EX8.5/Ex8_5.sce @@ -0,0 +1,25 @@ +//Calculate the force in Newtons between a pair of Sodium positive ion and Chloride negative ion in vacuum and in water
+
+//Example 8.5
+
+clc;
+
+clear;
+
+QNa=1.602*10^-19; //Charge on the Na ion in C
+
+QCl=-1.602*10^-19; //Charge on the Cl ion in C
+
+Epsio=8.854*10^-12; //Permittivity of the vacuum in C^2 N^-1 m^-2
+
+r=1*10^-9; //Distance between ions in m
+
+F1=(QNa*QCl)/((4*%pi*Epsio)*(r)^2); //Force in between a pair of ion in N
+
+printf("(a)Force Between ions in vacuum = %.2f*10^-10 N",F1*10^10);
+
+Epsi=78.54; //Dielectric constant of water
+
+F2=(QNa*QCl)/((4*%pi*Epsio*Epsi)*(r)^2); //Force in between a pair of ion in water in N
+
+printf("\n(b)Force between ions in water = %.2f*10^-12 N",F2*10^12);
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