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Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the following statements is FALSE regarding the reaction? SnCl4) + 4 H200 → Sn(OH)4(9) + 4 HCI9) SnCla0 H200 Sn(OH)46) HCl9 AH (kJ/mol)-511.3 -285.8 561.0 92.3 AS (J/mol K) 258.6 69.9 155.0 186.9 O AS on >0 O AH°rxn > 0 O AGʻpn <0 at 298 K O AG rxn >0 at 200 °C

Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the following statements is FALSE regarding the reaction? SnCl4) + 4 H200 → Sn(OH)4(9) + 4 HCI9) SnCla0 H200 Sn(OH)46) HCl9 AH (kJ/mol)-511.3 -285.8 561.0 92.3 AS (J/mol K) 258.6 69.9 155.0 186.9 O AS on >0 O AH°rxn > 0 O AGʻpn <0 at 298 K O AG rxn >0 at 200 °C

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.88PAE: Nickel metal reacts with carbon monoxide to form tetra-carbonyl nickel, Ni(CO)4:...
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Metals that are found at the bottom of the Ellingham diagram, such as Al, Mg, and Ca, are generally unstable and tend to form metal oxides easily. Select one: O True O False Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the following statements is FALSE regarding the reaction? SnCl4) + 4 H200→ Sn(OH)4(s) + 4 HCI)) SnCl4() H200 Sn(OH)4(9) HClg) AH°f (kJ/mol) |-511.3 285.8 561.0 92.3 AS (J/mol K) 258.6 69.9 155.0 186.9 O AS pxn >0 O AH°rxn > 0 O AG nn < 0 at 298 K O AG rn > at 200 °C At 400 °C, the AG ran for the oxidation of a monoatomic liquíd element Z in the presence of O2(g) forming ZO6 is -25.0 kJ per mol 02. In the compound ZOs), Z has rxn a +2 formal charge. Which of the following statements is CORRECT? The oxidation of Z with 02 is marked by an increase in entropy. O Z cannot be oxidized to ZO because Z is more stable than ZO at 400 °C or any T above it. O The oxidation of Z with 02 is exothermic. O Z0 cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG.
Transcribed Image Text:Metals that are found at the bottom of the Ellingham diagram, such as Al, Mg, and Ca, are generally unstable and tend to form metal oxides easily. Select one: O True O False Consider the reaction shown below and the tabulated thermochemical data at 298 K. Which of the following statements is FALSE regarding the reaction? SnCl4) + 4 H200→ Sn(OH)4(s) + 4 HCI)) SnCl4() H200 Sn(OH)4(9) HClg) AH°f (kJ/mol) |-511.3 285.8 561.0 92.3 AS (J/mol K) 258.6 69.9 155.0 186.9 O AS pxn >0 O AH°rxn > 0 O AG nn < 0 at 298 K O AG rn > at 200 °C At 400 °C, the AG ran for the oxidation of a monoatomic liquíd element Z in the presence of O2(g) forming ZO6 is -25.0 kJ per mol 02. In the compound ZOs), Z has rxn a +2 formal charge. Which of the following statements is CORRECT? The oxidation of Z with 02 is marked by an increase in entropy. O Z cannot be oxidized to ZO because Z is more stable than ZO at 400 °C or any T above it. O The oxidation of Z with 02 is exothermic. O Z0 cannot be reduced back to Z at any temperature because reduction of ZO to Z has +AG.
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