2 files changed, 31 insertions, 0 deletions
diff --git a/3685/CH4/EX4.2/Ex4_2.sce b/3685/CH4/EX4.2/Ex4_2.sce
new file mode 100644
index 000000000..6fdbe4dc3
--- /dev/null
+++ b/3685/CH4/EX4.2/Ex4_2.sce
@@ -0,0 +1,26 @@
+clc
+Qacb = 84 // Heat transfer along the path acb in kJ 
+Wacb = 32 // Work done along the path acb in kJ
+Uba = Qacb-Wacb // Ub-Ua
+// Part (a)
+Wadb = 10.5 // Work done along the path adb in kJ
+Qadb = Uba+Wadb // Heat flow into the system along the path adb
+printf("\n Example 4.2")
+printf("\n The heat flow into the system along the path adb is %f kJ.",Qadb)
+
+
+// Part (b)
+Wb_a = -21 // work done along the path ba in kJ
+Uab = - Uba // Change in internal energy along the path ab in kJ
+Qb_a = Uab+Wb_a // Heat liberated along the path b-a
+printf("\n The heat liberated along the path b-a is %d kJ.",Qb_a)
+
+// Part (c)
+Wdb = 0 // Constant volume
+Wad = 10.5 // work done along the path ad in kJ
+Wadb = Wdb-Wad // work done along the path adb in kJ
+Ud = 42
+Ua = 0
+Qad = Ud-Ua+Wad // Heat flow into the system along the path ad in kJ
+Qdb = Qadb-Qad  //Heat flow into the system along the path db in kJ
+printf("\n The heat absorbed in the path ad and db are %f kJ nd %d kJ respectively.",Qad,Qdb)
diff --git a/3685/CH4/EX4.2/Ex4_2.txt b/3685/CH4/EX4.2/Ex4_2.txt
new file mode 100644
index 000000000..097f199f9
--- /dev/null
+++ b/3685/CH4/EX4.2/Ex4_2.txt
@@ -0,0 +1,5 @@
+ 
+ Example 4.2
+ The heat flow into the system along the path adb is 62.500000 kJ.
+ The heat liberated along the path b-a is -73 kJ.
+ The heat absorbed in the path ad and db are 52.500000 kJ nd 10 kJ respectively.
+\ No newline at end of file