At 400 °C, the ΔG°rxn for the oxidation of a monoatomic liquid element Z in the presence of O2(g) forming ZO(s) is -25.0 kJ per mol O2. In the compound ZO(s), Z has a +2 formal charge. Which of the following statements is CORRECT? ZO cannot be reduced back to Z at any temperature because reduction of ZO to Z has +ΔG. Z cannot be oxidized to ZO because Z is more stable than 20 at 400 °C or any T above it The oxidation of Z with O2 is exothermic. The oxidation of Z with O2 is marked by an increase in entropy.
At 400 °C, the ΔG°rxn for the oxidation of a monoatomic liquid element Z in the presence of O2(g) forming ZO(s) is -25.0 kJ per mol O2. In the compound ZO(s), Z has a +2 formal charge. Which of the following statements is CORRECT? ZO cannot be reduced back to Z at any temperature because reduction of ZO to Z has +ΔG. Z cannot be oxidized to ZO because Z is more stable than 20 at 400 °C or any T above it The oxidation of Z with O2 is exothermic. The oxidation of Z with O2 is marked by an increase in entropy.
Chemistry by OpenStax (2015-05-04)
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ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter16: Thermodynamics
Section: Chapter Questions
Problem 33E: Use the standard free energy of formation data in Appendix G to determine the free energy change for...
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At 400 °C, the ΔG°rxn for the oxidation of a monoatomic liquid element Z in the presence of O2(g) forming ZO(s) is -25.0 kJ per mol O2. In the compound ZO(s), Z has a +2 formal charge. Which of the following statements is CORRECT?
- ZO cannot be reduced back to Z at any temperature because reduction of ZO to Z has +ΔG.
- Z cannot be oxidized to ZO because Z is more stable than 20 at 400 °C or any T above it
- The oxidation of Z with O2 is exothermic.
- The oxidation of Z with O2 is marked by an increase in entropy.
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