AP EAMCET · Chemistry · Electrochemistry
If \(\mathrm{E}_{\mathrm{Fe}^{2+} / \mathrm{Fe}}^0=-0.441 \mathrm{~V}\) and \(\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^0=0.771 \mathrm{~V}\), the standard emf of the cell reaction \(\mathrm{Fe}(\mathrm{s})+2 \mathrm{Fe}^{3+}(\mathrm{aq}) \longrightarrow 3 \mathrm{Fe}^{2+}(\mathrm{aq})\) is
- A \(-1.212 \mathrm{~V}\)
- B \(+1.212 \mathrm{~V}\)
- C \(-2.424 \mathrm{~V}\)
- D \(+2.424 \mathrm{~V}\)
Answer & Solution
Correct Answer
(B) \(+1.212 \mathrm{~V}\)
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