Gce Model Questions Vol1 2019 Chemistry Question 39
Practice objective / multiple choice question 39 from the 2019 Gce Model Questions Vol1 Chemistry examination.
A galvanic cell is assembled with a \(\mathrm{Cu^{2+}/Cu}\) electrode (standard reduction potential \(E^{\circ}=+0.34\) V) and a \(\mathrm{Fe^{2+}/Fe}\) electrode (standard reduction potential \(E^{\circ}=-0.44\) V). Both half‑cells contain 0.010 mol dm⁻³ of their respective metal ions at 25 °C.\n\n(i) Write the overall cell reaction and calculate the standard cell potential \(E^{\circ}_{\text{cell}}\).\n(ii) If the concentration of \(\mathrm{Cu^{2+}}\) is increased to 0.10 mol dm⁻³ while \(\mathrm{Fe^{2+}}\) remains at 0.010 mol dm⁻³, calculate the cell potential using the Nernst equation.\n(iii) State the direction of spontaneous electron flow in both cases.
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This is Gce Model Questions Vol1 2019 Chemistry Question 39. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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