initial commit / add all books

9 files changed, 149 insertions, 0 deletions

diff --git a/3689/CH9/EX9.10/9_10.sce b/3689/CH9/EX9.10/9_10.sce
new file mode 100644
index 000000000..308fcfd66
--- /dev/null
+++ b/3689/CH9/EX9.10/9_10.sce
@@ -0,0 +1,11 @@
+////Variable Declaration

+rho = 789.9     //Density of acetone, g/L

+n = 1.0         //moles of acetone, mol

+M = 58.08       //Molecular wt of acetone, g/mol

+kHacetone = 1950 //Henrys law constant, torr

+//Calculations

+H = n*M*kHacetone/rho

+

+//Results

+printf("\n Henrys constant = %5.2f torr",H)

+

diff --git a/3689/CH9/EX9.11/9_11.sce b/3689/CH9/EX9.11/9_11.sce
new file mode 100644
index 000000000..8083b05c5
--- /dev/null
+++ b/3689/CH9/EX9.11/9_11.sce
@@ -0,0 +1,14 @@
+////Variable Declaration

+m = 0.5         //Mass of water, kg

+ms = 24.0       //Mass of solute, g

+Ms = 241.0      //Molecular wt of solute, g/mol

+Tfd = 0.359     //Freezinf point depression, °C or K

+kf = 1.86       //Constants for freezing point depression for water, K kg/mol

+

+//Calculations

+msolute = ms/(Ms*m)

+gama = Tfd/(kf*msolute)

+

+//Results

+printf("\n Activity coefficient = %4.3f",gama)

+

diff --git a/3689/CH9/EX9.12/9_12.sce b/3689/CH9/EX9.12/9_12.sce
new file mode 100644
index 000000000..800e9029f
--- /dev/null
+++ b/3689/CH9/EX9.12/9_12.sce
@@ -0,0 +1,20 @@
+////Variable Declaration

+m = 70.0        //Mass of human body, kg

+V = 5.00        //Volume of blood, L

+HN2 = 9.04e4    //Henry law constant for N2 solubility in blood, bar

+T = 298.0       //Temperature, K

+rho = 1.00      //density of blood, kg/L

+Mw = 18.02      //Molecualr wt of water, g/mol

+X = 80          //Percent of N2 at sea level

+p1= 1.0  //Pressures, bar

+ p2 = 50.0

+R = 8.314e-2       //Ideal Gas constant, L.bar/(mol.K)

+//Calculations

+nN21  = (V*rho*1e3/Mw)*(p1*X/100)/HN2

+nN22  = (V*rho*1e3/Mw)*(p2*X/100)/HN2

+V = (nN22-nN21)*R*T/p1

+//Results

+printf("\n Number of moles of nitrogen in blood at 1 and 50 bar are %3.2e,%3.3f mol",nN21,nN22)

+

+printf("\n Volume of nitrogen released from blood at reduced pressure %4.3f L",V)

+

diff --git a/3689/CH9/EX9.2/9_2.sce b/3689/CH9/EX9.2/9_2.sce
new file mode 100644
index 000000000..52a03ce76
--- /dev/null
+++ b/3689/CH9/EX9.2/9_2.sce
@@ -0,0 +1,21 @@
+////

+//Variable Declaration

+nb = 5.00      //Number of moles of Benzene, mol

+nt = 3.25      //Number of moles of Toluene, mol

+T = 298.15     //Temperature, K

+P = 1.0        //Pressure, bar

+R = 8.314      //Ideal Gas Constant, J/(mol.K)

+

+//Calculations

+n = nb + nt

+xb = nb/n

+xt = 1. - xb

+dGmix = n*R*T*(xb*log(xb)+xt*log(xt))

+dSmix = -n*R*(xb*log(xb)+xt*log(xt))

+

+//Results

+printf("\n Gibbs energy change of mixing is %4.3e J",dGmix)

+

+printf("\n Gibbs energy change of mixing is < 0, hence the mixing is spontaneous')

+printf("\n Entropy change of mixing is %4.2f J/K",dSmix)

+

diff --git a/3689/CH9/EX9.3/9_3.sce b/3689/CH9/EX9.3/9_3.sce
new file mode 100644
index 000000000..cda296edf
--- /dev/null
+++ b/3689/CH9/EX9.3/9_3.sce
@@ -0,0 +1,23 @@
+////Variable Declaration

+nb = 5.00      //Number of moles of Benzene, mol

+nt = 3.25      //Number of moles of Toluene, mol

+T = 298.15     //Temperature, K

+R = 8.314      //Ideal Gas Constant, J/(mol.K)

+P0b = 96.4     //Vapor pressure of Benzene, torr

+P0t = 28.9     //Vapor pressure of Toluene, torr

+

+//Calculations

+n = nb + nt

+xb = nb/n

+xt = 1. - xb

+P = xb*P0b + xt*P0t

+y = (P0b*P - P0t*P0b)/(P*(P0b-P0t))

+yt = 1. -y

+

+//Results

+printf("\n Total pressure of the vapor is %4.1f torr",P)

+

+printf("\n Benzene fraction in vapor is %4.3f ",y)

+

+printf("\n Toulene fraction in vapor is %4.3f ",yt)

+

diff --git a/3689/CH9/EX9.6/9_6.sce b/3689/CH9/EX9.6/9_6.sce
new file mode 100644
index 000000000..7c1555d8f
--- /dev/null
+++ b/3689/CH9/EX9.6/9_6.sce
@@ -0,0 +1,21 @@
+////Variable Declaration

+m = 4.50        //Mass of substance dissolved, g

+ms = 125.0      //Mass of slovent (CCl4), g

+TbE = 0.65      //Boiling point elevation, °C

+[Kf, Kb] = (30.0, 4.95)    //Constants for freezing point elevation 

+                        // and boiling point depression for CCl4, K kg/mol

+Msolvent = 153.8  //Molecualr wt of solvent, g/mol

+//Calculations

+DTf = -Kf*TbE/Kb

+Msolute = Kb*m/(ms*1e-3*TbE)

+nsolute = m/Msolute

+nsolvent = ms/Msolvent 

+x = 1.0 -  nsolute/(nsolute + nsolvent)

+

+//Results

+printf("\n Freezing point depression %5.2f K",DTf)

+

+printf("\n Molecualr wt of solute %4.1f g/mol",Msolute)

+

+printf("\n Vapor pressure of solvent is reduced by a factor of %4.3f",x)

+

diff --git a/3689/CH9/EX9.7/9_7.sce b/3689/CH9/EX9.7/9_7.sce
new file mode 100644
index 000000000..291a6ab5c
--- /dev/null
+++ b/3689/CH9/EX9.7/9_7.sce
@@ -0,0 +1,11 @@
+////Variable Declaration

+csolute = 0.500 //Concentration of solute, g/L

+R = 8.206e-2    //Gas constant L.atm/(mol.K)

+T = 298.15      //Temperature of the solution, K

+

+//Calculations

+pii = csolute*R*T

+

+//Results

+printf("\n Osmotic pressure %4.2f atm",pii)

+

diff --git a/3689/CH9/EX9.8/9_8.sce b/3689/CH9/EX9.8/9_8.sce
new file mode 100644
index 000000000..fa28a34ed
--- /dev/null
+++ b/3689/CH9/EX9.8/9_8.sce
@@ -0,0 +1,14 @@
+////Variable Declaration

+xCS2 = 0.3502   //Mol fraction of CS2, g/L

+pCS2 = 358.3    //Partial pressure of CS2, torr

+p0CS2 = 512.3   //Total pressure, torr

+

+//Calculations

+alpha = pCS2/p0CS2

+gama = alpha/xCS2

+

+//Results

+printf("\n Activity of CS2 %5.4f atm",alpha)

+

+printf("\n Activity coefficient of CS2 %5.4f atm",gama)

+

diff --git a/3689/CH9/EX9.9/9_9.sce b/3689/CH9/EX9.9/9_9.sce
new file mode 100644
index 000000000..07c46fa1d
--- /dev/null
+++ b/3689/CH9/EX9.9/9_9.sce
@@ -0,0 +1,14 @@
+////Variable Declaration

+xCS2 = 0.3502   //Mol fraction of CS2, g/L

+pCS2 = 358.3    //Partial pressure of CS2, torr

+kHCS2 = 2010.   //Total pressure, torr

+

+//Calculations

+alpha = pCS2/kHCS2

+gama = alpha/xCS2

+

+//Results

+printf("\n Activity of CS2 %5.4f atm",alpha)

+

+printf("\n Activity coefficinet of CS2 %5.4f atm",gama)

+