When the battery is discharging the
A - VCE - SSCE Chemistry - Question 13 - 2011 - Paper 1
Question 13
When the battery is discharging the
A. H⁺ concentration decreases resulting in a higher pH.
B. H⁺ concentration increases resulting in a higher pH.
C. H⁺ concentr... show full transcript
Worked Solution & Example Answer:When the battery is discharging the
A - VCE - SSCE Chemistry - Question 13 - 2011 - Paper 1
Step 1
A. H⁺ concentration decreases resulting in a higher pH.
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Answer
This statement is incorrect. When a battery discharges, it releases H⁺ ions into the solution, leading to an increase in H⁺ concentration, which results in a lower pH.
Step 2
B. H⁺ concentration increases resulting in a higher pH.
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Answer
This statement is also incorrect. An increase in H⁺ concentration corresponds to a decrease in pH, not an increase.
Step 3
C. H⁺ concentration decreases resulting in a lower pH.
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Answer
This statement is incorrect because a decrease in H⁺ concentration would lead to a higher pH.
Step 4
D. H⁺ concentration increases resulting in a lower pH.
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Answer
This statement is correct. When the battery discharges, the H⁺ concentration increases, causing the pH to decrease.