Chemistry

Problem

A Daniell cell (Zn|Zn

^{2+}

, Cu

^{2+}

|Cu) has

E^\circ_{\text{cell}} = +1.10\,\text{V}

. A separate water-splitting cell that produces O

_2

(g) and H

_2

(g) has

E^\circ_{\text{cell}} = -1.23\,\text{V}

. A student connects the two cells in series so that the Daniell cell supplies current to the water-splitting cell, and gas bubbles are observed in the water-splitting compartment. Which statement correctly describes the role of each cell during operation? a) Both cells function as galvanic cells. b) The Daniell cell functions as a galvanic cell, and the water-splitting cell functions as an electrolytic cell. c) Both cells function as electrolytic cells. d) The Daniell cell functions as an electrolytic cell, and the water-splitting cell functions as a galvanic cell.

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