(ii) Zinc is deposited
at the zinc
electrode and
copper dissolves at
copper electrode (a)
(b)
(c)
Rationalised 2023-24
33
Electrochemistry
As mentioned earlier a galvanic cell is an electrochemical cell that
converts the chemical energy of a spontaneous redox reaction into
electrical energy In this device the Gibbs energy of the spontaneous
redox reaction is converted into electrical work which may be used for
running a motor or other electrical gadgets  like heater, fan,
geyser, etc Daniell cell discussed earlier is one such cell in which the following
redox reaction occurs