The reduction of iron(III) oxide (Fe2O3) to pure iron during the first step of steelmaking,2 Fe2O3(s) 4 Fe(s) + 302 (g)→>>is driven by the high-temperature combustion of coke, a purified form of coal:C(s) + O2(g) CO₂ (g)→Suppose at the temperature of a blast furnace the Gibbs free energies of formation AG of CO2 and Fe2O3 are -442. kJ/mol and-822. kJ/mol, respectively. Calculate the maximum mass of pure iron that can be produced by the combustion of 5700. kg of coke.Round your answer to 2 significant digits.kg☐ x10

1) Convert coke mass to moles (assuming pure carbon)2) Calculate moles of iron (Fe) produced3)…

Answered: The reduction of iron(III) oxide…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as described by the reaction АТРаq) + H,О0) ADP(aq) + HPO, (aq) > for which AGfxn = -30.5 kJ/mol at 37.0 °C and pH 7.0. Calculate the value of AGrxn in a biological cell in which [ATP] = 5.0 mM, [ADP] = 0.40 mM, and [HPO¯] = 5.0 mM. -48.9 AGrxn kJ/mol Incorrect Is the hydrolysis of ATP spontaneous under these conditions? yes no
MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol · K)) CH, OH (1) -238.6 126.8 O₂(g) 0 205.2 CO₂(g) -393.5 213.8 CO2(aq) -413.8 117.6 H₂O(g) -241.8 188.8 H₂O(1) -187.8 70.0 ▼ Part D where no represents the stoichiometric coefficients of the products, n, represents the st of the reactants, and Sº represents the standard entropies. AGxn= Calculate AG at 25°C. Express your answer in kilojoules to three significant figures. Submit = Provide Feedback 15] ΑΣΦ Request Answer Part E Complete previous part(s) [2(S° co₂(g)) + 4(S° H₂O(g))]- [2(S° CH₂OH()) + 3(S° 0₂(E [2(213.8 J/K)+4(188.8 J/K)] - [2(126.8 J/K) + 3(2 314 J/K MacBook Pro P Pearson ? kJ Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions Contac
At 25 °C, the equilibrium partial pressures for the reaction 2 A(g) + 4B(g) = 2C(g) + D(g) were found to be P = 4.62 bar, P = 4.70 bar, Pe=5.81 bar, and Pp = 5.90 bar. What is the standard change in Gibbs free energy of this reaction at 25 C? AG kJ/mol
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction N, (g) + 3 H, (g) 2 NH,(g) the standard change in Gibbs free energy is AG° = -32.8 kJ/mol. What is AG for this reaction at 298 K when the partial pressures are PN, = 0.500 atm, Pi, = 0.100 atm, and PNH, = 0.600 atm? AG = kJ/mol
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction N, (g) + 3 H, (g) = 2 NH,(g) the standard change in Gibbs free energy is AG° = –72.6 kJ/mol. What is AG for this reaction at 298 K when the partial pressures are PN, = 0.500 atm, PH, = 0.500 atm, and PNH, = 0.600 atm? AG = kJ/mol
At 25 ∘C25 ∘C, the equilibrium partial pressures for the reaction 3A(g)+4B(g)↽−−⇀2C(g)+3D(g) were found to be PA=5.55 atm, PB=5.46 atm, PC=5.18 atm, and PD=5.93 atm. What is the standard change in Gibbs free energy of this reaction at 25 ∘C? kJ/mol
What is the standard free-energy change for the following reaction: 2C6H6 (l) + 15O2 (g) 12CO2 (g) + 6H2O (l) at 25 0C? Values of delta Gf of substances at standard conditions are as follows: Benzene = 124.5 kJ/mol, Carbon dioxide = -394.4 kJ/mol, Oxygen gas = 0.0 kJ/mol, and Liquid water =A. -237.2 kJ/mol. B. -64.05 kJC. +640.5 kJD. -6405 kJE, None of the above
Make a non-spontaneous process spontaneous A process that is nonspontaneous can be made spontaneous by coupling it with another process tha is highly spontaneous. The coupling of nonspontaneous reactions with highly spontaneous ones is important in biological system. The oxidization of glucose, for example, is highly spontaneous: C6H12O6(s) + 60₂(g) → 6 CO₂(g) + 6 H₂O(1) Spontaneous reactions such as this ultimately drive the nonspontaneous reactions necessary to sustain life. Can you use Gibbs free energy, enthalpy, and entropy to argue this reaction is highly spontaneous?
What is the standard free-energy change for the following reaction: 2C6H6 (l) + 15O2 (g) 12CO2 (g) + 6H2O (l) at 25 0C? Values of delta Gf of substances at standard conditions are as follows: Benzene = 124.5 kJ/mol, Carbon dioxide = -394.4 kJ/mol, Oxygen gas = 0.0 kJ/mol, and Liquid water = -237.2 kJ/mol.-64.05 kJ+640.5 kJ-6405 kJNone of the above
A chemist fills a reaction vessel with 0.137 g calcium phosphate (Ca, (PO,) solid, 0.349 M calcium (Ca ) aqueous solution, and 0.240 M phosphate (Po,") 3- POA aqueous solution at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction: Ca3 (PO4),(s) → 3Ca (aq) + 2PO, (aq) 4. Use the thermodynamic information in the ALEKS Data tab. Round your answer to the nearest kilojoule. kJ
Calculate the free energy change under nonstandard state conditions. Use standard thermodynamic data (in the Chemistry References) to calculate triangleG at 298.15 K for the following reaction, assuming that all gases have a pressure of 10.35 mm Hg. 2S02(g) + O2(g) 2SO3(g) triangleG= kJ/mol Calculate the equilibrium constant from the standard free energy change. Using standard thermodynamic data (linked), calculate the equilibrium constant at 298.15 K for the following reaction. C2H4(g) + H2O(g)——->CH3CH2OH(g)
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