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

---
 905/CH1/EX1.12/1_12.sce | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100755 905/CH1/EX1.12/1_12.sce

(limited to '905/CH1/EX1.12/1_12.sce')

diff --git a/905/CH1/EX1.12/1_12.sce b/905/CH1/EX1.12/1_12.sce
new file mode 100755
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--- /dev/null
+++ b/905/CH1/EX1.12/1_12.sce
@@ -0,0 +1,28 @@
+clear;
+clc;
+
+// Illustration 1.12
+// Page: 34
+
+printf('Illustration 1.12 - Page:34 \n\n');
+// Solution
+
+//*****Data*****//
+//  ammonia-1  nitrogen-2   hydrogen-3
+T = 300; // [K]
+P = 1; // [bar]
+y_1 = .40;
+y_2 = .20;
+y_3 = .40;
+//*****//
+
+// The binary diffusivities are the same as for Example 1.11.
+D_12 = 0.237; // [square cm/s]
+D_13 = 0.728; // [square cm/s]
+
+// mole fractions of nitrogen (2) and hydrogen (3) on an ammonia (1)-free base from equation (1.61)
+y_21 = y_2/(1-y_1);
+y_31 = y_3/(1-y_1);
+// Substituting in equation (1.60) gives us
+D_1eff = 1/((y_21/D_12)+(y_31/D_13));
+printf("The effective diffusivity of ammonia in the gaseous mixture is  %e square cm/s",D_1eff); 
\ No newline at end of file
-- 
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