A cell can be considered a secondary cell if
A - VCE - SSCE Chemistry - Question 4 - 2023 - Paper 1
Question 4
A cell can be considered a secondary cell if
A. it has a continuous supply of reactants.
B. it can operate at different temperatures.
C. the polarity of the electrod... show full transcript
Worked Solution & Example Answer:A cell can be considered a secondary cell if
A - VCE - SSCE Chemistry - Question 4 - 2023 - Paper 1
Step 1
A. it has a continuous supply of reactants.
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Answer
This statement is incorrect for secondary cells. Secondary cells, or rechargeable batteries, do not require a continuous supply of reactants. Instead, they contain reactants that can be restored through an external power source.
Step 2
B. it can operate at different temperatures.
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Answer
While some cells can operate at various temperatures, this alone does not classify a cell as a secondary cell. The defining characteristic of secondary cells is their ability to be recharged.
Step 3
C. the polarity of the electrodes remains unchanged.
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Answer
This is not a characteristic of secondary cells. In secondary cells, the polarity of electrodes can change depending on whether the cell is discharging or charging.
Step 4
D. it can operate as both a galvanic and electrolytic cell.
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Answer
This statement is correct. A secondary cell can function as both a galvanic cell during discharge (converting chemical energy to electrical energy) and as an electrolytic cell during charging (converting electrical energy back into chemical energy).
