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//Calculate the number of Einstens absorbed per second and the Total energy absorbed
//Example 19.1
clc;
clear;
A=0.65; //Absorbance of complex ion
epsilion=1.11*10^4; //Molar absorptivity or Molar extinction coefficient in L mol^-1 cm^-1
b=1; //Pathlength in cm
c1=A/(epsilion*b); //Concentraton in mol L^-1 or M
m=(c1*35)/1000; //number of moles of Ferrus ion produced in mol
q=0.93; //Quantum yield
fi=m/q; //Number of Einstens absorbed in mol or einstein
t=30*60; //Time irradiated with monochromatic light in s
v=fi/t; //Rate of absorption in einstein s^-1
printf("Number of Einstens absorbed per second = %.1f*10^-9 einstein s^-1",v*10^9);
lemda=468*10^-9; //Wavelength in m
c=3.0*10^8; //Speed of light in m s^-1
new=c/lemda; //Frequency of monochromatic light in s^-1
h=6.626*10^-34; //Planck's constant in J s
NA=6.022*10^23; //Avogadro's number in mol^-1
E=fi*NA*h*new; //Energy absorbed in J
printf("\n Total Energy absorbed = %.2f J ",E);
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