G=H-TS is enthalpy, T is temperature, and S is ical reaction that causes magnesium to air is given by 2Mg + O₂-2MgO t 298 K, AH = - 1204 kJ and = -217.1 J/K. 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 = .0 μÁ Value 4 Units ?

Chemistry
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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 S is
entropy.
The chemical reaction that causes magnesium to
corrode in air is given by
2Mg + O2-2MgO
in which at 298 K, AH = 1204 kJ and
AS = -217.1 J/K.
-
Part B
What is the Gibbs free energy for this reaction at 5958 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)
AGrxn=
O
μÅ
Value
Units
?
Transcribed Image Text: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 S is entropy. The chemical reaction that causes magnesium to corrode in air is given by 2Mg + O2-2MgO in which at 298 K, AH = 1204 kJ and AS = -217.1 J/K. - Part B What is the Gibbs free energy for this reaction at 5958 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) AGrxn= O μÅ Value Units ?
G=H-TS
is enthalpy, T is temperature, and Sis
ical reaction that causes magnesium to
air is given by
2Mg + O₂-2MgO
t 298 K, AH
= - 217.1 J/K.
= - 1204 kJ and
▼
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 =
HÅ
Value
Ć
Units
?
Transcribed Image Text:G=H-TS is enthalpy, T is temperature, and Sis ical reaction that causes magnesium to air is given by 2Mg + O₂-2MgO t 298 K, AH = - 217.1 J/K. = - 1204 kJ and ▼ 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 = HÅ Value Ć Units ?
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