Iron oxides can be smelted in a blast furnace by reacting with COg), which serves as the reducing agent. To supply the needed reducing agent, Ce) is added to the blast furnace and is converted to co, through a sequence of two reactions: Reaction I: C(e) + O2(0) → CO2(9) Reaction II: Co) + CO2(0) – 2 CO(g) The standard enthalpies of formation at 298 K for CO2(a) and CO(o) are -394 kJ/mol and -111 kJ/mol, respectively. Which of the following statements is TRUE? O The overall reaction has an increasing slope when plotted in an Ellingham diagram. O The overall reaction is spontaneous only at high temperatures. Reactions I and II are both an exothermic process. O Reaction I is exothermic, whereas Reaction II is endothermic.
Iron oxides can be smelted in a blast furnace by reacting with COg), which serves as the reducing agent. To supply the needed reducing agent, Ce) is added to the blast furnace and is converted to co, through a sequence of two reactions: Reaction I: C(e) + O2(0) → CO2(9) Reaction II: Co) + CO2(0) – 2 CO(g) The standard enthalpies of formation at 298 K for CO2(a) and CO(o) are -394 kJ/mol and -111 kJ/mol, respectively. Which of the following statements is TRUE? O The overall reaction has an increasing slope when plotted in an Ellingham diagram. O The overall reaction is spontaneous only at high temperatures. Reactions I and II are both an exothermic process. O Reaction I is exothermic, whereas Reaction II is endothermic.
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
Chapter21: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 67E
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![Iron oxides can be smelted in a blast furnace by reacting with Cco), which serves as the reducing agent. To
supply the needed reducing agent, Ce) is added to the blast furnace and is converted to CO(g) through a
sequence of two reactions:
Reaction I:
C(e) + O2(0) – CO2(9)
Reaction II: C(s) + CO2(9) - 2 CO(g)
The standard enthalpies of formation at 298 K for CO29) and COg) are -394 kJ/mol and -111 kJ/mol,
respectively.
Which of the following statements is TRUE?
O The overall reaction has an increasing slope when plotted in an Ellingham diagram.
O The overall reaction is spontaneous only at high temperatures.
O Reactions I and Il are both an exothermic process.
Reaction I is exothermic, whereas Reaction II is endothermic.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F675bab31-2f21-493f-a2eb-c19d619e7c43%2Fd3e44de1-274e-4602-97a6-2d956c1df7a3%2F2zptcbb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Iron oxides can be smelted in a blast furnace by reacting with Cco), which serves as the reducing agent. To
supply the needed reducing agent, Ce) is added to the blast furnace and is converted to CO(g) through a
sequence of two reactions:
Reaction I:
C(e) + O2(0) – CO2(9)
Reaction II: C(s) + CO2(9) - 2 CO(g)
The standard enthalpies of formation at 298 K for CO29) and COg) are -394 kJ/mol and -111 kJ/mol,
respectively.
Which of the following statements is TRUE?
O The overall reaction has an increasing slope when plotted in an Ellingham diagram.
O The overall reaction is spontaneous only at high temperatures.
O Reactions I and Il are both an exothermic process.
Reaction I is exothermic, whereas Reaction II is endothermic.
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