Physics

Problem

25\,\text{g}

piece of iron

\bigl(c = 0.45\,\text{J}\,\text{g}^{-1}\,^{\circ}\!\text{C}^{-1}\bigr)

and a

25\,\text{g}

sample of water

\bigl(c = 4.18\,\text{J}\,\text{g}^{-1}\,^{\circ}\!\text{C}^{-1}\bigr)

each absorb

225\,\text{J}

of heat. What is the ratio

\Delta T_{\text{iron}} / \Delta T_{\text{water}}

? a)

0.11

1.0

9.3

5.0