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author | priyanka | 2015-06-24 15:03:17 +0530 |
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committer | priyanka | 2015-06-24 15:03:17 +0530 |
commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1367/CH21/EX21.1 | |
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initial commit / add all books
Diffstat (limited to '1367/CH21/EX21.1')
-rwxr-xr-x | 1367/CH21/EX21.1/21_1.sce | 13 | ||||
-rwxr-xr-x | 1367/CH21/EX21.1/21_1r.txt | 7 |
2 files changed, 20 insertions, 0 deletions
diff --git a/1367/CH21/EX21.1/21_1.sce b/1367/CH21/EX21.1/21_1.sce new file mode 100755 index 000000000..1959a6d14 --- /dev/null +++ b/1367/CH21/EX21.1/21_1.sce @@ -0,0 +1,13 @@ +//Find Concentration Gradient and diffusivity
+//Ex:21.1
+clc;
+clear;
+close;
+c_cu=2*10^13;//concentration of copper in /m^3
+c_al=4*10^6;//concn of copper on other side of Al in /m^3
+t=3*10^-3;//thickness in m
+z=(c_cu-c_al)/t;//z=dm/dx,concentration graient
+disp(z,"Concentration Gradient (in /m^4) = ");
+jx=10^21;//outward flux of copperv atoms in /sq m/sec
+d=-jx/z;//diffusivity in sq m/sec
+disp(d,"Diffusivity (in sq m/sec) = ");
\ No newline at end of file diff --git a/1367/CH21/EX21.1/21_1r.txt b/1367/CH21/EX21.1/21_1r.txt new file mode 100755 index 000000000..3f0e2854c --- /dev/null +++ b/1367/CH21/EX21.1/21_1r.txt @@ -0,0 +1,7 @@ +Concentration Gradient (in /m^4) =
+
+ 6.667D+15
+
+ Diffusivity (in sq m/sec) =
+
+ - 150000.03
\ No newline at end of file |