The set up of Hall-Heroult process is given (refer Fig. 17 − 22 ). The amount of current supplied for a given period of time to produce given amount of Aluminum using Hall-Heroult process is to be calculated. Concept introduction: The non-spontaneous reaction takes place in an electrolytic cell in which there occurs conversion of electrical energy into chemical energy and this is used for the electrolysis of a metal. The charge generated in the cell is calculated as, Q = It When electricity is passed through an electrolytic cell, at that time the amount of the substance that is liberated at an electrode is given by, W = ZQ = ZIt The value of Z is given as, Z = Molar mass n × 96,485 To determine: The amount of current supplied for a given period of time to produce given amount of Aluminum using Hall-Heroult process.

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Chapter 17, Problem 101E

Interpretation Introduction

Interpretation:

The set up of Hall-Heroult process is given (refer Fig. 17−22 ). The amount of current supplied for a given period of time to produce given amount of Aluminum using Hall-Heroult process is to be calculated.

Concept introduction:

The non-spontaneous reaction takes place in an electrolytic cell in which there occurs conversion of electrical energy into chemical energy and this is used for the electrolysis of a metal.

The charge generated in the cell is calculated as,

Q = It

When electricity is passed through an electrolytic cell, at that time the amount of the substance that is liberated at an electrode is given by,

W = ZQ= ZIt

The value of Z is given as,

Z = Molar massn × 96,485

To determine: The amount of current supplied for a given period of time to produce given amount of Aluminum using Hall-Heroult process.

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