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Sagot :
The ∆G° for the dissolution of AgCl solid is 55.7 kJ/mol.
What is gibbs free energy?
The gibbs free energy is termed as thermodynamic quantity which is equal to the enthalpy (of a system or process) subtracted by the product of the entropy and the absolute temperature.
The gibbs free energy of the reaction is given by:
∆G°(rxn) =sum of ([∆G°] products)- sum of ( [∆ G°] reactants)
Reaction can be given as:
AgCl(S) » Ag+ (aq) + Cl- (aq)
Gibbs free energy of silver ions = ∆G°f, (Ag+) = 77.1kJ/mol
Gibbs free energy of formation of chloride ions = ∆G°f, (Cl-)= -131. 2kJ/mol
Gibbs free energy of formation of silver chloride solid = ∆ G°f, (AgCl) = - 109.8kJ/mol
The gibbs free energy of the reaction of dissolution of AgCl) :∆ G°rxn:
∆G°rxn = (77.1kJ/mol) – (- 109.8kJ/mol)
55.7kJ/mol
Thus, we found that the ∆G° for the dissolution of AgCL solid is 55.7 kJ/mol.
learn more about gibbs free energy:
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