Chapter 17: Q35E (page 960)
List some things that are typically considered when selecting a battery for a new application.
Short Answer
- Mass of the battery
- Capacity
- Reliability
- Cost
Chapter 17: Q35E (page 960)
List some things that are typically considered when selecting a battery for a new application.
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Get started for freeAluminium metal can be made from aluminium ions by electrolysis. What is the half-reaction at the cathode? What mass of aluminium metal would be recovered if a current of 2.50 ร 103 A passed through the solution for 15.0 minutes? Assume the yield is 100%
For each reaction listed, determine its standard cell potential at \({25\circ }{\rm{C}}\) and whether the reaction is spontaneous at standard conditions.
(a)\({\mathop{\rm Mn}\nolimits} (s) + {\rm{N}}{{\rm{i}}^{2 + }}(aq) \to {{\mathop{\rm Mn}\nolimits} ^{2 + }}(aq) + {\rm{Ni}}(s)\)
(b)\(3{\rm{C}}{{\rm{u}}^{2 + }}(aq) + 2{\rm{Al}}(s) \to 2{\rm{A}}{{\rm{l}}^{3 + }}(aq) + 3{\rm{Cu}}(s)\)
(c)\({\rm{Na}}(s) + {\rm{LiN}}{{\rm{O}}_3}(aq) \to {\rm{NaN}}{{\rm{O}}_3}(aq) + {\rm{Li}}(s)\)
(d) \({\rm{Ca}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}(aq) + {\rm{Ba}}(s) \to {\rm{Ba}}{\left( {{\rm{N}}{{\rm{O}}_3}} \right)_2}(aq) + {\rm{Ca}}(s)\)
Determine the overall reaction and its standard cell potential at 25 ยฐC for the reaction involving the galvanic cell made from a half-cell consisting of a silver electrode in 1 M silver nitrate solution and a half-cell consisting of azinc electrode in 1 M zinc nitrate. Is the reaction spontaneous at standard conditions?
Determine the overall reaction and its standard cell potential at \({25circ} {\rm{C}}\) for this reaction. Is the reaction spontaneous at standard conditions?
\({\rm{Cu}}(s)\left| {{\rm{C}}{{\rm{u}}^{2 + }}(aq) || {\rm{A}}{{\rm{u}}^{3 + }}(aq)} \right|{\rm{Au}}(s)\)
Why do batteries go dead, but fuel cells do not?
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