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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /551/CH9/EX9.19 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '551/CH9/EX9.19')
| -rwxr-xr-x | 551/CH9/EX9.19/19.sce | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/551/CH9/EX9.19/19.sce b/551/CH9/EX9.19/19.sce new file mode 100755 index 000000000..8497305c2 --- /dev/null +++ b/551/CH9/EX9.19/19.sce @@ -0,0 +1,39 @@ +clc
+cp_CO2=0.85; //kJ/kg K
+cp_N2=1.04; //kJ/kg K
+m_CO2=4; //kg
+T1_CO2=313; //K
+m_N2=8; //kg
+T1_N2=433; //K
+p2=0.7; //bar
+p1_CO2=1.4; //bar
+p1_N2=1;
+R=8.314;
+M_CO2=44;
+M_N2=28;
+R_CO2=R/M_CO2;
+R_N2=R/M_N2;
+
+disp("(i) Final temperature, T2")
+T2=(m_CO2*cp_CO2*T1_CO2 + m_N2*cp_N2*T1_N2)/(m_CO2*cp_CO2 + m_N2*cp_N2);
+disp("T2=")
+disp(T2)
+disp("K")
+
+
+disp("(ii) Change in entropy")
+n_CO2=0.0909;
+n_N2=0.2857;
+n=n_CO2 + n_N2;
+
+x_CO2=n_CO2/n;
+x_N2=n_N2/n;
+
+p2_CO2=x_CO2*p2;
+p2_N2=x_N2*p2;
+
+
+dS=m_CO2*cp_CO2*log(T2/T1_CO2) - m_CO2*R_CO2*log(p2_CO2/p1_CO2) + m_N2*cp_N2*log(T2/T1_N2) - m_N2*R_N2*log(p2_N2/p1_N2);
+disp("dS=")
+disp(dS)
+disp("kJ/K")
\ No newline at end of file |