Consider a battery with the overall reaction:
Chemistry 2e · 17.5 Batteries and Fuel Cells
Batteries and Fuel Cells: practice problems
3 problems from the book, with its answers. Check your working, or have any of them explained to you on the whiteboard.
Exercises 34
Exercises 36
Key terms · 9
- alkaline battery
- primary battery similar to a dry cell that uses an alkaline (often potassium hydroxide) electrolyte; designed to be an improved replacement for the dry cell, but with more energy storage and less electrolyte leakage than typical dry cell
- battery
- single or series of galvanic cells designed for use as a source of electrical power
- dry cell
- primary battery, also called a zinc-carbon battery, based on the spontaneous oxidation of zinc by manganese(IV)
- fuel cell
- devices similar to galvanic cells that require a continuous feed of redox reactants; also called a flow battery
- lead acid battery
- rechargeable battery commonly used in automobiles; it typically comprises six galvanic cells based on Pb half-reactions in acidic solution
- lithium ion battery
- widely used rechargeable battery commonly used in portable electronic devices, based on lithium ion transfer between the anode and cathode
- nickel-cadmium battery
- rechargeable battery based on Ni/Cd half-cells with applications similar to those of lithium ion batteries
- primary cell
- nonrechargeable battery, suitable for single use only
- secondary cell
- battery designed to allow recharging
Learn 17.5 on the whiteboard
The tutor teaches the whole section, drawing it out step by step and answering your questions as you go.