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Posted: **Sun Jul 10, 2022 3:48 pm**

: Gibbs Free Energy G Is A Measure Of The Spontaneity Of A Chemical Reaction It Is The Chemical Potential For A Reactio 1 (75.89 KiB) Viewed 41 times

: Gibbs Free Energy G Is A Measure Of The Spontaneity Of A Chemical Reaction It Is The Chemical Potential For A Reactio 2 (34.56 KiB) Viewed 41 times

: Gibbs Free Energy G Is A Measure Of The Spontaneity Of A Chemical Reaction It Is The Chemical Potential For A Reactio 3 (26.06 KiB) Viewed 41 times

Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, T is temperature, and Sis entropy. The chemical reaction that causes aluminum to corrode in air is given by 4A1+302 in which at 298 K, AHxn ASixn - 625.1 J/K. - 2Al2O3 H www - 3352 kJ and
Part A What is the standard Gibbs free energy for this reaction? Assume the commonly used standard reference temperature of 298 K. Express your answer as an integer and include the appropriate units. ► View Available Hint(s) AGI Submit Part B HÅ AGran = Value What is the Gibbs free energy for this reaction at 5975 K? Assume that AH and AS do not change with temperature. Express your answer to two decimal places and include the appropriate units. ▸ View Available Hint(s) μÃ Units Value G Units
Part C At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium? Express your answer as an integer and include the appropriate units. View Available Hint(s) Teq = 11 μA Value Units SA ?