Posted by **physicshelp** on Sunday, January 13, 2013 at 1:17pm.

Two pieces of metal (A and B) are identical

in every way, except that A has a much larger

thermal expansion coefficient.

If equal amounts of heat are added to both

pieces of metal, which metal does more work

on its surroundings?

1. A

2. B

3. They do the same work.

4. Unable to determine

please help

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