Applications of Electrochemistry (Grade 12 NSC Matric Physical Sciences): Flashcards
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Practise the cards
10 cards from this deck
Battery
Battery
Device storing chemical energy as electrical energy
Fuel cells
Fuel cells
Convert fuel oxidation to electrical energy (clean tech)
Electroplating uses
Electroplating uses
Corrosion protection, wear resistance, jewellery
Brine
Brine
Saturated aqueous NaCl solution
Chloralkali industry output
Chloralkali industry output
Chlorine gas and sodium hydroxide from brine
Best chloralkali cell type
Best chloralkali cell type
Membrane cell (efficient, pure, low electricity use)
Mercury cell disadvantage
Mercury cell disadvantage
Mercury toxic, expensive, needs lots of electricity
Aluminium ore
Aluminium ore
Bauxite
Cryolite function in Al extraction
Cryolite function in Al extraction
Lowers melting point, dissolves ore
Al extraction main problem
Al extraction main problem
Endothermic, needs large electricity amounts, expensive