Waec Model Questions Vol1 2025 Chemistry Question 2
Practice objective / multiple choice question 2 from the 2025 Waec Model Questions Vol1 Chemistry examination.
A galvanic cell consists of the half‑reactions Zn²⁺ + 2e⁻ → Zn(s) (E° = -0.76 V) and Cu²⁺ + 2e⁻ → Cu(s) (E° = +0.34 V). The cell EMF measured at 298 K is 1.10 V and at 318 K is 1.07 V. Assuming the reaction Zn(s) + Cu²⁺ → Zn²⁺ + Cu(s) and that ΔCₚ ≈ 0, determine the standard enthalpy change ΔH° for the cell reaction (in kJ mol⁻¹).
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This is Waec Model Questions Vol1 2025 Chemistry Question 2. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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