Chapter 17, Problem 1QRT

(a)

Interpretation Introduction

Interpretation:

A voltaic cell showing the cathode, the anode, the direction of electron movement outside the cell and the direction of ion movement inside the cell has to be drawn.

Concept Introduction:

The cell potential is defined as the potential difference that gets created between the electrodes of a cell due to the movement of electrons from anode to the cathode.  The unit of cell potential is volts.  An electrochemical cell is used to produce electricity by converting the chemical energy which is produced by the reactions occurring in a cell.  It consists of a cathode for the reduction reaction and anode for the oxidation reaction.

(b)

Interpretation Introduction

Interpretation:

The principal components of a standard hydrogen electrode have to be shown.  An explanation of working of standard hydrogen electrode has to be stated.

Concept Introduction:

Refer to part (a).