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 freeFor the scenario in the previous question, how many electrons moved through the circuit.
Identify the species that was oxidized, the species that was reduced, the oxidizing agent, and the reducing agentin each of the reactions of the previous problem.
(a) \({\bf{S}}{{\bf{O}}_{\bf{3}}}^{{\bf{2 - }}}{\bf{(aq) + Cu(OH}}{{\bf{)}}_{\bf{2}}}{\bf{(s)}} \to {\bf{S}}{{\bf{O}}_{\bf{4}}}^{{\bf{2 - }}}{\bf{(aq) + Cu(OH)(s)}}\)
(b) \({{\bf{O}}_{\bf{2}}}{\bf{(g) + Mn(OH}}{{\bf{)}}_{\bf{2}}}{\bf{(s)}} \to {\bf{Mn}}{{\bf{O}}_{\bf{2}}}{\bf{(s)}}\)
(c) \({\bf{N}}{{\bf{O}}_{\bf{3}}}^{\bf{ - }}{\bf{(aq) + }}{{\bf{H}}_{\bf{2}}}{\bf{(g)}} \to {\bf{NO(g)}}\)
(d) \({\bf{Al(s) + Cr}}{{\bf{O}}_{\bf{4}}}^{{\bf{2 - }}}{\bf{(aq)}} \to {\bf{Al(OH}}{{\bf{)}}_{\bf{3}}}{\bf{(s) + Cr(OH}}{{\bf{)}}_{\bf{4}}}^{\bf{ - }}{\bf{(aq)}}\)
What is the standard free energy change and the equilibrium constant for the following reaction at room temperature? Is the reaction spontaneous?
An irregularly shaped metal part made from a particular alloy was galvanized with zinc using a \({\bf{Zn}}{\left( {{\bf{N}}{{\bf{O}}_3}} \right)_2}\)solution. When a current of \({\bf{2}}.{\bf{599}}{\rm{ }}{\bf{A}}\)was used, it took exactly \({\bf{1}}\) an hour to deposit a \({\bf{0}}.{\bf{01123}} - {\bf{mm}}\) layer of zinc on the part. What was the total surface area of the part? The density of zinc is \({\bf{7}}.{\bf{140}}{\rm{ }}{\bf{g}}/{\bf{c}}{{\bf{m}}^3}.\) Assumed the efficiency is \({\bf{100}}\% \).
Why would a sacrificial anode made of lithium metal be a bad choice despite its \({\bf{E}}_{{\bf{Li}}}^{\bf{^\circ }}{\bf{ + Li = - 3}}{\bf{.04\;V}}\), which appears to be able to protect all the other metals listed in the standard reduction potential table?
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