Posted by **Mary** on Friday, April 13, 2007 at 8:01am.

A rod made from a particular alloy is heated from 23.5°C to the boiling point of water. Its length increases by 8.21 10-4 m. The rod is then cooled from 23.5°C to the freezing point of water. By how much does the rod shrink?

I will be happy to critique your work.

use a proportion.

deltaL/8.21E-4=(23.5/(100-23.5)

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