Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 16 - Temperature and Heat - Conceptual Questions - Page 565: 10

Answer

Sample answer: they have the same mass, but different specific heats, or they have the same specific heats, but different masses.

Work Step by Step

From the equation for specific heat, $c=\displaystyle \frac{Q}{m\Delta T}$, we express $\displaystyle \Delta T=\frac{Q}{mc}.$ We read from here that if $\Delta T$ is to be the same, then, for both objects, $Q=mc.$ Two examples when this could happen are: they have the same mass, but different specific heats, or they have the same specific heats, but different masses. In any case, the term $mc$ is equal for both objects.
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