From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 632/CH9/EX9.8/example9_8.sce | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100755 632/CH9/EX9.8/example9_8.sce (limited to '632/CH9/EX9.8') diff --git a/632/CH9/EX9.8/example9_8.sce b/632/CH9/EX9.8/example9_8.sce new file mode 100755 index 000000000..e17fc2398 --- /dev/null +++ b/632/CH9/EX9.8/example9_8.sce @@ -0,0 +1,18 @@ +//clc() +F = 100;//kg +xf = 0.15; +P1 = 80;//% ( Carbonate recovered ) +M1 = 106;//(Molecular weight of Na2CO3) +M2 = 286;//(Molecular weight of Na2CO3.10H2O) +x1 = M1 / M2;//(Weight fraction of Na2CO3 in crystals) +Mrecovered = P1 * F * xf / 100; +Wcrystal = Mrecovered / x1; +disp("kg",Wcrystal,"(a)quantity of crystals formed = ") +//Na2CO3 balance gives, F*xf = Wcrystal*x1 + W2*x2 +//W2 weight of mother liquor remaining after crystallization +//let M = W2 * x2,therefore +M = F * xf - Mrecovered; +x2 = 0.09; +W2 = M/x2; +W3 = F - Wcrystal - W2;//weight of water evaporated +disp("kg",W3,"(b)Weight of water evaporated = ") \ No newline at end of file -- cgit