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//Calculate the standard molar Enthalpy of activation (delH),standard molar Entropy of activation (delS)and Standard molar Gibbs energy of activation (delG) for the reaction CH3NC(g)=CH3CN(g)
//Example 12.2
clc;
clear;
k=4.0*10^13; //Pre exponential factor in s^-1
KB=1.381*10^-23; //Boltzman constant in J K^-1
h=6.626*10^-34; //Planck's constant in J s
R=8.314; //Gas constant in J K^-1 mol^-1
T=300; //Absolute temperature in K
e=2.718; //ln constant
delS=log((k*h)/(e*KB*T))*R; // Standard molar Entropy in J K^-1 mol^-1
printf("Standard molar Entropy = %.2f J K^-1 mol^-1",delS);
Ea=272; //Activation Energy in kJ mol^-1
delH=Ea-(R*T/1000); //Standard molar Enthalpy in kJ mol^-1
printf("\n Standard molar Enthalpy = %.0f kJ mol^-1",delH);
delG=delH-(T*delS/1000); //Standard molar Gibbs energy in kJ mol^-1(The answer vary due to round off error)
printf("\n Standard molar Gibbs Energy = %.3f kJ mol^-1",delG);
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