Which Requires the Most Electricity (In Terms of Faradays of Charge

question 92

Multiple Choice

Which requires the most electricity (in terms of faradays of charge transferred) per gram of useful product formed?

• A)electrolysis of aqueous NaCl (chlor-alkali industry)
• B)electrolysis of molten NaCl/CaCl₂ in a Downs cell
• C)electrorefining copper metal
• D)production of aluminum in the Hall-Heroult process

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Definitions:

Closed System

A physical or economic system that does not interact with or exchange matter with its surroundings.

Say's Law

An economic theory that suggests that supply creates its own demand, meaning that production inherently generates a demand for the goods produced.

Open Economy

An economy linked to the rest of the world through international trade.

Equilibrium GDP

The level of GDP at which total demand for goods and services equals total supply in an economy, indicating a state of economic balance.