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

---
 1439/CH21/EX21.1/21_1.sce | 13 +++++++++++++
 1439/CH21/EX21.2/21_2.sce |  9 +++++++++
 2 files changed, 22 insertions(+)
 create mode 100755 1439/CH21/EX21.1/21_1.sce
 create mode 100755 1439/CH21/EX21.2/21_2.sce

(limited to '1439/CH21')

diff --git a/1439/CH21/EX21.1/21_1.sce b/1439/CH21/EX21.1/21_1.sce
new file mode 100755
index 000000000..b61b1c15a
--- /dev/null
+++ b/1439/CH21/EX21.1/21_1.sce
@@ -0,0 +1,13 @@
+clc
+//initialisation of variables
+A= 500 //cm^2
+m= 0.106 //mg
+N= 6*10^23 //molecules
+M= 284 //g mole^-1
+d= 0.85 //g/cm^3
+//CALCULATIONS
+A1= A*M/(N*m^10^-3)
+t= m*10^-3/(A*d)
+//RESULTS
+printf ('cross-sectional area = %.e cm^2 ',A1)
+printf ('\n thcikness t of the film = %.e cm ',t)
diff --git a/1439/CH21/EX21.2/21_2.sce b/1439/CH21/EX21.2/21_2.sce
new file mode 100755
index 000000000..c5712118d
--- /dev/null
+++ b/1439/CH21/EX21.2/21_2.sce
@@ -0,0 +1,9 @@
+clc
+//initialisation of variables
+V= 129 //ml g^-1
+N= 6*10^23 //molecules
+A= 16.2 //A^2
+//CALCULATIONS
+SA= V*N*A*10^-10/(10^3*22.4)
+//RESULTS
+printf ('surface area per gram of gel = %.f m^2 g^-1',SA)
-- 
cgit