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Question

Discuss the relationship between wmax and the magnitude and sign of the free energy change for a reaction. Also discuss wmax for real processes. What is a reversible process?

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The electrolysis can be used for the production of hydrogen gas, for the electrometallurgy, electroplating and various metals can also be obtained by this process. The electrolysis of molten http://seo-question-images.s3-website-us-east-1.amazonaws.com/9781305079243/79243-16-10RQ/img_65fba9cccc763485721e43cde6c09be9.png involves two species and therefore can be easily electrolyzed, but the electrolysis of the aqueous http://seo-question-images.s3-website-us-east-1.amazonaws.com/9781305079243/79243-16-10RQ/img_65fba9cccc763485721e43cde6c09be9.png is bit difficult because it involves the electrolysis of sodium chloride as well as water. The metals can be easily purified by the process of electrolysis. This process is called electrolytic refining.

Electrolysis can be used for the equivalent mass determination, for the electrolysis of water for the production of hydrogen gas, metals like http://seo-question-images.s3-website-us-east-1.amazonaws.com/9781305079243/79243-16-10RQ/img_2a9e565e1525964cd9d0d5bf35205abe.pngcan be obtained by this process.

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The purification of metal by the process of electrolysis is called electrolytic refining.

The refining of copper metal is shown as,

http://seo-question-images.s3-website-us-east-1.amazonaws.com/9781305079243/79243-16-10RQ/img_08f23610f2c30dc34c8ad6ea85e68de5.png

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