diff options
Diffstat (limited to '3689/CH19')
| -rw-r--r-- | 3689/CH19/EX19.6/19_6.sce | 23 | ||||
| -rw-r--r-- | 3689/CH19/EX19.7/19_7.sce | 14 |
2 files changed, 37 insertions, 0 deletions
diff --git a/3689/CH19/EX19.6/19_6.sce b/3689/CH19/EX19.6/19_6.sce new file mode 100644 index 000000000..0378b51d2 --- /dev/null +++ b/3689/CH19/EX19.6/19_6.sce @@ -0,0 +1,23 @@ +////Variable Declarations
+mr = 2.5e-3 //Moles reacted, mol
+P = 100.0 //Irradiation Power, J/s
+t = 27 //Time of irradiation, s
+h = 6.626e-34 //Planks constant, Js
+c = 3.0e8 //Speed of light, m/s
+labda = 280e-9 //Wavelength of light, m
+
+//Calculation
+Eabs = P*t
+Eph = h*c/labda
+nph = Eabs/Eph //moles of photone
+phi = mr/6.31e-3
+
+//Results
+printf("\n Total photon energy absorbed by sample %3.1e J",Eabs)
+
+printf("\n Photon energy absorbed at 280 nm is %3.1e J",Eph)
+
+printf("\n Total number of photon absorbed by sample %3.1e photones",nph)
+
+printf("\n Overall quantum yield %4.2f",phi)
+
diff --git a/3689/CH19/EX19.7/19_7.sce b/3689/CH19/EX19.7/19_7.sce new file mode 100644 index 000000000..3d8b4d8a7 --- /dev/null +++ b/3689/CH19/EX19.7/19_7.sce @@ -0,0 +1,14 @@ +//////Variable Declarations
+r = 2.0e9 //Rate constant for electron transfer, per s
+labda = 1.2 //Gibss energy change, eV
+DG = -1.93 //Gibss energy change for 2-naphthoquinoyl, eV
+k = 1.38e-23 //Boltzman constant, J/K
+T = 298.0 //Temeprature, K
+//Calculation
+DGS = (DG+labda)**2/(4*labda)
+k193 = r*exp(-DGS*1.6e-19/(k*T))
+//Results
+printf("\n DGS = %5.3f eV",DGS)
+
+printf("\n Rate constant with barrier to electron transfer %3.2e per s",k193)
+
|