initial commit / add all books

1 files changed, 14 insertions, 0 deletions

diff --git a/2213/CH3/EX3.9/ex_3_9.sce b/2213/CH3/EX3.9/ex_3_9.sce
new file mode 100755
index 000000000..49ea120fc
--- /dev/null
+++ b/2213/CH3/EX3.9/ex_3_9.sce
@@ -0,0 +1,14 @@
+//Example 3.9 // mass of aluminium
+clc;
+clear;
+close;
+//given data :
+ECE_silver=111*10^-8;//in kg/C
+Cew_silver=107.98;//chemical equivalent of silver
+Cew_al=27/3;//chemical equivalent of aluminium
+Z=(ECE_silver*Cew_al)/Cew_silver;
+C_efficiency=0.92;
+I=3000;//in A
+t=24*60*60;//in seconds
+m=Z*I*t*C_efficiency;
+disp(m,"mass of aluminium,,m(kg) = ")