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Diffstat (limited to '1019/CH7/EX7.7')
| -rw-r--r-- | 1019/CH7/EX7.7/Example_7_7.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/1019/CH7/EX7.7/Example_7_7.sce b/1019/CH7/EX7.7/Example_7_7.sce new file mode 100644 index 000000000..0e6bc6000 --- /dev/null +++ b/1019/CH7/EX7.7/Example_7_7.sce @@ -0,0 +1,26 @@ +//Example 7.7
+clear;
+clc;
+
+//Given
+R=0.08205;//gas constant in atm dm^3 K^-1 mol^-1
+R1=8.314;//gas constant in J K^-1 mol^-1
+T=293;//temperature in K
+w1=100;//weight of ethanol taken in g
+w2=100;//weight of methanol taken in g
+p1=44.5;//vapour preaaure of pure ethanol in mm Hg
+p2=88.7;//vapour preaaure of pure methanol in mm Hg
+
+//To determine the vapour pressure of solution,partial vapour pressures and vapour phase composition
+n1=100/46;//moles of ethanol
+n2=100/32;//moles of methanol
+x1=n1/(n1+n2);//mole fraction of ethanol
+x2=n2/(n1+n2);//mole fraction of methanol
+P1=p1*x1;//partial pressure of ethanol in mm Hg
+P2=p2*x2;//partial pressure of methanol in mm Hg
+P=P1+P2;//vapour pressure of the solution in mm Hg
+y1=P1/P;//mole fraction of ethanol in the vapour phase
+y2=1-y1;//mole fraction of methanol in the vapour phase
+mprintf('(i) Vapour pressure of the solution = %f',P);
+mprintf('\n (ii) Partial vapour pressure of ethanol is %f mm Hg and that of methanol is %f mm Hg',P1,P2);
+mprintf('\n (iii) mole fraction of ethanol in vapour phase is %f and that of methanol is %f',y1,y2);
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