Question:
A cell that utilises the reaction
Zn(s) + 2H^+(aq) Zn²⁺(aq) + H₂(g)
addition of H₂SO₄ to cathode compartment, will:
A cell that utilises the reaction
Zn(s) + 2H^+(aq) Zn²⁺(aq) + H₂(g)
addition of H₂SO₄ to cathode compartment, will:
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Increasing reactant concentration shifts equilibrium forward.
Updated On: Mar 17, 2026
- increase the E and shift equilibrium to the right.
- lower the E and shift equilibrium to the right.
- lower the E and shift equilibrium to the left.
- increase the E and shift equilibrium to the left.
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The Correct Option is A
Solution and Explanation
Adding H₂SO₄ increases [H^+].
From Nernst equation:
E = E^ - (0.059)/(2)[Zn²⁺][H^+]²
Increase in [H^+] decreases the logarithmic term, thus:
- Cell potential E increases.
- Equilibrium shifts to the right.
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