Other things being equal , the EMF of a Daniel cell may be increased byA. keeping low temperatureB. using large copper electrodesC. using large zinc electrodesD. decreasing concentration of `Cu^(2+)` ions .

Other things being equal , the EMF of a Daniel cell may be increased b

1.	Other things being equal , the EMF of a Daniel cell may be increased byA. keeping low temperatureB. using large copper electrodesC. using large zinc electrodesD. decreasing concentration of `Cu^(2+)` ions .
Answer» Correct Answer - A For Daniel cell , `Zn + Cu^(2+) to Zn^(2+) + Cu` , `E_("cell") = E_("cell")^(@) - (RT)/(nF) "ln" ([Zn^(2+)])/([Cu^(2+)])` . Decrease of temperature and increase of `[Cu^(2+)]` will increase the EMF .

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Other things being equal , the EMF of a Daniel cell may be increased byA. keeping low temperatureB. using large copper electrodesC. using large zinc electrodesD. decreasing concentration of `Cu^(2+)` ions .

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