4.2 Applications of Electrolysis Flashcards
1
Q
Define the term ‘electroplating’
A
Electroplating is a process where the surface of one metal is coated with a layer of a different metal.
2
Q
Which electrode is the electroplated object going to be at?
A
The Cathode (-ve)
3
Q
Which electrode is the pure metal that will be coated be at?
A
The Anode (+ve)
4
Q
What will the electrolyte be during electroplating?
A
An aqueous solution of a soluble salt of the pure metal at the anode
5
Q
List 2 reasons for electroplating
A
- Preventing corrosion
- Improving appearance
6
Q
What is the only product of a hydrogen fuel cell?
A
Water
7
Q
List 2 advantages of Hydrogen fuel cells
A
- Process is renewable
- Doesn’t cause any pollution
8
Q
List 2 Disadvantages of hydrogen fuel cells
A
- Fuel cells are expensive to produce
- Are less efficient in low temperatures
9
Q
A
