Answer
Rusting takes place at the surface of iron, where it oxidizes. Thin iron rods have more surface area than the same mass of thick iron piles.
Work Step by Step
This is discussed on page 238.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 12 - Think and Explain - Page 242-243: 72
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