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//computation of free energy of a rxn from equilibrium constant
clear;
clc;
printf("\t Example 18.7\n");
T=298;//temperature, K
R=8.314;//gas constant, J/K mol
Ksp=1.6*10^-10;//solubility constant
deltaG=-R*T*log(Ksp);//here solubility product is equal to equilibrium constant
printf("\t the free energy for the given reaction is : %4.0f kJ/mol \n",deltaG*10^-3);
//End
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