1 files changed, 21 insertions, 0 deletions
diff --git a/3685/CH7/EX7.7/Ex7_7.sce b/3685/CH7/EX7.7/Ex7_7.sce
new file mode 100644
index 000000000..89200fe6a
--- /dev/null
+++ b/3685/CH7/EX7.7/Ex7_7.sce
@@ -0,0 +1,21 @@
+clc
+P1 = 0.5 // Initial pressure in MPa
+V1 = 0.2  // Initial volume in m^3
+V2 = 0.05 // Final volume in m^3
+n = 1.3 // Polytropic index
+
+
+printf("\n Example 7.7")
+P2 = P1*(V1/V2)^n 
+function y = f(p)
+  y = ((P1*V1^n)/p)^(1/n) 
+endfunction
+H = integrate('f','p',P1,P2)  // H = H2-H1
+U = H-(P2*V2-P1*V1) 
+W12 = -U 
+printf("\n Change in enthalpy is %f kJ",H*1e3)
+printf("\n Change in internal energy is %f kJ",U*1000)
+printf("\n The change in entropy and heat transfer are is %d kJ",0)
+printf("\n The work transfer during the process is %f kJ",W12*1000)
+//The answers vary due to round off error
+