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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 /2870/CH7/EX7.19 | |
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initial commit / add all books
Diffstat (limited to '2870/CH7/EX7.19')
| -rwxr-xr-x | 2870/CH7/EX7.19/Ex7_19.sce | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/2870/CH7/EX7.19/Ex7_19.sce b/2870/CH7/EX7.19/Ex7_19.sce new file mode 100755 index 000000000..24f5ff685 --- /dev/null +++ b/2870/CH7/EX7.19/Ex7_19.sce @@ -0,0 +1,21 @@ +clc;clear;
+//Example 7.19
+
+//given data
+m=50;
+T1=500;
+T2=285;
+
+//from Table A-3
+Cavg=0.45;
+
+//calculations
+dSiron=m*Cavg*log(T2/T1);
+disp(dSiron,'entropy change of the iron block in kJ/K');
+// Ein - Eout = dEsystem
+Qout=m*Cavg*(T1-T2);
+dSlake=Qout/T2;
+disp(dSlake,'entropy change of the lake in kJ/K');
+// Sin - Sout + Sgen = dSsystem/dt
+Sgen=(Qout/T2)+dSiron;
+disp(Sgen,'entropy change in the process in kJ/K')
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