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A certain reaction is spontaneous at 72˚C. if the enthalpy change for the reaction is 19Kj/mol, what is the minimum value of ΔS (in J/K•mol) for the reaction?

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dG = dH - TdS
Max value for dG is 0.
Then TdS = dH
dS = dH/T = 19,000/(273+72)
dS = ?

55 J/K

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