When one mole of zinc combines with sulphuric acid 445 kJ of heat is liberated and when a mole of copper is liberated from blue vitriol 235 kj of heat

Monjur Alahi

When one mole of zinc combines with sulphuric acid 445 kJ of heat is liberated and when a mole of copper is liberated from blue vitriol 235 kj of heat is absorbed. Avogadro number = `6.023 xx 10^(23)`, electronic charge = `1.6 xx 10^(-19)` C and zinc or copper is divalent. Use these data to find the emf of a Daniell cell.
[Hint: Energy liberated in the form of heat is converted into elecrical energy in a Daniel cell]`


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Salim Ahmed Kawsar

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Correct Answer - 1.09 V

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