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Diffstat (limited to '3492/CH1/EX1.9/Ex1_9.sce')
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diff --git a/3492/CH1/EX1.9/Ex1_9.sce b/3492/CH1/EX1.9/Ex1_9.sce new file mode 100644 index 000000000..a751d7034 --- /dev/null +++ b/3492/CH1/EX1.9/Ex1_9.sce @@ -0,0 +1,18 @@ +clc
+//Chapter1
+//Ex_1.9
+//Given
+k=1.38*10^-23 //J/K
+T=300 //kelvin
+Ev=0.75 //eV/atom
+Ev=Ev*1.6*10^-19 //in J
+T1=660//degree celcius
+T1=T1+273 //in kelvin
+//at room temperature
+//let nv/N=nv_N for convenience
+nv_N=exp(-Ev/(k*T))
+disp(nv_N,"Fractional concentration of vacancies in the aluminium crystal at room temperature is")
+//at melting temperature
+//let nv/N=nv_N for convenience
+nv_N=exp(-Ev/(k*T1))
+disp(nv_N,"Fractional concentration of vacancies in the aluminium crystal at melting temperature is")
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