Question

difference between corrosion of silver articles and copper articles with respects to
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Answer 1

Answer:

The atmospheric corrosion of copper and silver influenced by graphite and alumina as particulate matter (PM) in an environment containing 200 μg m−3 SO2 + 150 μg m−3 NO2 at 85% RH and 25 °C was analyzed. Different proportions of PM mixture conditions were used, and the corrosion rate was followed using gravimetric analysis. Results of linear sweep voltammetry (LSV) and coulometric reduction (CR) indicated that larger corrosion rates were obtained in the presence of deposited PM. Under present exposure conditions, copper corrosion rate was larger than silver corrosion rate. X-ray diffraction (XRD) shows the presence of cuprite (Cu2O) and brochantite (Cu4SO4(OH)6) in the case of copper and achantite (Ag2S) in the case of silver

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Explanation:

Answer 2

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