Electrolytic Cells (Leaving Cert Chemistry): Flashcards
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Definition of electrolytic cell
Definition of electrolytic cell
Uses electrical energy to drive non-spontaneous chemical reactions
Energy conversion in electrolytic cells
Energy conversion in electrolytic cells
Electrical energy → chemical energy
Energy conversion in galvanic cells
Energy conversion in galvanic cells
Chemical energy → electrical energy
Definition of electrolyte
Definition of electrolyte
Substance that conducts electricity when molten or dissolved
How electrolytes conduct electricity
How electrolytes conduct electricity
Through movement of free ions
Who coined the term 'electrolysis'
Who coined the term 'electrolysis'
Michael Faraday
Definition of electrolysis
Definition of electrolysis
Use of electricity to cause a chemical reaction in electrolyte
Power source for electrolytic cells
Power source for electrolytic cells
External source (battery or power supply)
Where cations move in electrolysis
Where cations move in electrolysis
To the negative electrode (cathode)
Where anions move in electrolysis
Where anions move in electrolysis
To the positive electrode (anode)
Inert electrode materials used
Inert electrode materials used
Carbon (graphite) or platinum
Why use inert electrodes
Why use inert electrodes
Don't react with electrolyte, only carry current
Electrode where reduction occurs
Electrode where reduction occurs
Cathode
Electrode where oxidation occurs
Electrode where oxidation occurs
Anode
Products of water electrolysis
Products of water electrolysis
Hydrogen and oxygen gases