Consider the following characteristics of electrolytic cells and galvanic cells - VCE - SSCE Chemistry - Question 7 - 2021 - Paper 1
Question 7
Consider the following characteristics of electrolytic cells and galvanic cells.
Characteristic number | Electrolytic cells | Galvanic cells ... show full transcript
Worked Solution & Example Answer:Consider the following characteristics of electrolytic cells and galvanic cells - VCE - SSCE Chemistry - Question 7 - 2021 - Paper 1
Step 1
1. cathode is negative
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Answer
In electrolytic cells, the cathode is indeed negative. This is due to the external voltage applied, which forces electrons towards the cathode.
Step 2
2. have non-spontaneous reactions
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Answer
Electrolytic cells require an external power source to drive their non-spontaneous chemical reactions. This contrasts with galvanic cells, which are spontaneous.
Step 3
3. reduction occurs at the anode
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In electrolytic cells, reduction occurs at the anode due to the reverse charge flow facilitated by the power source.
Step 4
4. produce electricity
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Electrolytic cells do not produce electricity; they consume electrical energy to drive non-spontaneous reactions, unlike galvanic cells, which produce electricity through spontaneous reactions.
