From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 3492/CH1/EX1.9/Ex1_9.sce | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 3492/CH1/EX1.9/Ex1_9.sce

(limited to '3492/CH1/EX1.9')

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")
-- 
cgit