Physics

Problem

12.5\,\text{g}

chunk of an unknown substance at

5.0\,^{\circ}\text{C}

is placed into

75.0\,\text{g}

of water at

35.0\,^{\circ}\text{C}

. After stirring, the final temperature of the system is

31.2\,^{\circ}\text{C}

. Determine the specific heat capacity of the unknown substance in

\text{J}\,\text{g}^{-1}\,^{\circ}\text{C}^{-1}