Question: Certain gas A is dissolved in a liquid B contained in a beaker. As A diffuses, it undergoes an irreversible zero-order chemical reaction of the

Certain gas "A" is dissolved in a liquid "B" contained in a beaker. As "A" diffuses, it undergoes an irreversible zero-order chemical reaction of the form: A + B C. The formation of C does not interfere with diffusion. Upon reaching a certain length "S" from the interface, the species "A" disappears completely.

Find an expression for the average molar concentration of "A" at the diffusion length "S".

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