a)Which redox reaction is not spontaneous under standard conditions? a 2 Fe + 3 Br2 → 2 Fe3+ + 6 Br− b 2 Fe3+ + 3 Ni → 2 Fe + 3 Ni2+ c Fe2+ + Ni → Fe + Ni2+ d 2 Fe3+ + Ni → 2 Fe2+ + Ni2+ e All of the above reactions are spontaneous
a)Which redox reaction is not spontaneous under standard conditions? a 2 Fe + 3 Br2 → 2 Fe3+ + 6 Br− b 2 Fe3+ + 3 Ni → 2 Fe + 3 Ni2+ c Fe2+ + Ni → Fe + Ni2+ d 2 Fe3+ + Ni → 2 Fe2+ + Ni2+ e All of the above reactions are spontaneous
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
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Chapter17: Electrochemistry
Section: Chapter Questions
Problem 28E: Determine the overall reaction and its standard cell potential at 25 C for these reactions. Is the...
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Question
a)Which
a
|
2 Fe + 3 Br2 → 2 Fe3+ + 6 Br− |
b
|
2 Fe3+ + 3 Ni → 2 Fe + 3 Ni2+ |
c
|
Fe2+ + Ni → Fe + Ni2+ |
d
|
2 Fe3+ + Ni → 2 Fe2+ + Ni2+ |
e
|
All of the above reactions are spontaneous |
b)Consider the following half-reaction: BrO- → Br- The balanced equation for the half-reaction in basic conditions is:
a
|
BrO- + 2H+ + 2e- → Br- + H2O |
b
|
BrO- + 2H+ → Br- + H2O + 2e- |
c
|
BrO- + H2O → Br- + 2OH- + 2e- |
d
|
BrO- + H2O + 2e- → Br- + 2OH- |
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