Chapter19-PhotoChemistry

Ex1-pg636

In [1]:
import math
##Intitalisation of variables
t= 5. ##cm
c= 0.01 ##M
ir= 0.245
##CALCULATIONS
e= -math.log10(ir)/(t*c)
##RESULTS
print'%s %.2f %s'% ('Extinction coefficient =  ',e,'')

Extinction coefficient =   12.22

Ex2-pg641

In [2]:
import math
##Intitalisation of variables
w= 2540. ##A
v= 10. ##ml
c= 0.0495 ##M
a= 8.81*10**8 ##ergs
c1= 0.0383 ##M
n= 1.12*10**-4 ##moles
n1= 2.859 ##moles
##CALCULATIONS
qy= n*n1*4.184*10**15/(a*w)
##RESULTS
print'%s %.2f %s'% ('Quantum yield =  ',qy,'')

Quantum yield =   0.60