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

---
 32/CH7/EX7.20/7_20.sce | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100755 32/CH7/EX7.20/7_20.sce

(limited to '32/CH7/EX7.20/7_20.sce')

diff --git a/32/CH7/EX7.20/7_20.sce b/32/CH7/EX7.20/7_20.sce
new file mode 100755
index 000000000..bcab9843b
--- /dev/null
+++ b/32/CH7/EX7.20/7_20.sce
@@ -0,0 +1,25 @@
+//pathname=get_absolute_file_path('7.20.sce')
+//filename=pathname+filesep()+'7.20-data.sci'
+//exec(filename)
+//From steam tables:
+//Saturated vapor pressure:
+p5=260.96 //kPa
+p15=182.60 //kPa
+vg10=0.07665 // m^3/kg
+vf10=0.00070 //m^3/kg
+R=0.06876 //kJ/kg.K
+hfg10=156.3 //kJ/kg
+T=-5+273
+T1=-15+273
+T2=-5+273
+//By Clapeyron equation:
+//Value of hfg:
+hfg=T*(vg10-vf10)*(p5-p15)/(15-5)
+//By Clapeyron-Clausius equation:
+hfg1=log(p5/p15)*R*(T1*T2)/((T2-T1))
+//Deviation:
+d=(hfg1-hfg)/hfg*100
+printf("\nRESULT")
+printf("\nhfg by Clapeyron equation = %f kJ/kg",hfg)
+printf("\nhfg by Clapeyron-Clausius equation = %f kJ/kg",hfg1)
+printf("\nPercentage deviation in hfg value by Clapeyron-Clausius equation compared to the value from Clapeyron equation = %f percent",d)
\ No newline at end of file
-- 
cgit