Chemistry
Chemistry
Problem
A current of 40 microampere is passed through a solution of for 32 minutes using Pt electrodes. A uniform single atom thick layer of Ag is deposited covering 43% cathode surface. What is the total surface area of cathode if each Ag atom covers ?Intuitive explanation
This problem combines electrochemistry with atomic-scale geometry. You need to find how many silver atoms were deposited using Faraday's laws (current, time, and electron transfer), then work backward from the coverage area to find the total cathode surface. The key insight is that 43% coverage means you can calculate the total area once you know the area covered by deposited silver atoms.
Intuitive explanation
This problem combines electrochemistry with atomic-scale geometry. You need to find how many silver atoms were deposited using Faraday's laws (current, time, and electron transfer), then work backward from the coverage area to find the total cathode surface. The key insight is that 43% coverage means you can calculate the total area once you know the area covered by deposited silver atoms.