From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

---
 1019/CH2/EX2.21/Example_2_21.sce | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 1019/CH2/EX2.21/Example_2_21.sce

(limited to '1019/CH2/EX2.21/Example_2_21.sce')

diff --git a/1019/CH2/EX2.21/Example_2_21.sce b/1019/CH2/EX2.21/Example_2_21.sce
new file mode 100644
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--- /dev/null
+++ b/1019/CH2/EX2.21/Example_2_21.sce
@@ -0,0 +1,25 @@
+//Example 2.21
+clear;
+clc;
+
+//Given
+T1=300; //initial temperature in K
+T2=600; //final temperature in K
+R=8.314;// gas constant in J K^-1 mol^-1
+Cv=25; //specific heat capacity at constant volume of the gas in J K^-1 mol^-1
+n=1;//moles of the gas
+P1=100; //initial gas pressure in kN m^-2
+P2=1000; //final gas pressure in kN m^-2
+
+// To determine net work done and efficiency
+w1=R*T1*log(P2/P1);//work done in 1st step in J
+w2=Cv*(T2-T1);//work done in 2nd step in J
+w3=R*T2*log(P1/P2);//work done in 3rd step in J
+q2=(-1)*w3;//heat taken up in J
+w4=Cv*(T1-T2);//work done in final step in J
+W=-(w1+w2+w3+w4);//total work done step in J
+N=W/q2;//efficiency
+mprintf('Net work done = %f',W);
+mprintf('\n Heat absorbed = %f',q2);
+mprintf('\n efficiency = %f',N);
+//end
\ No newline at end of file
-- 
cgit