Physics

Problem

An unknown metal of mass 192 g heated to a temperature of

100^{\circ}\text{C}

was immersed into a brass calorimeter of mass 128 g containing 240 g of water at a temperature of

8.4^{\circ}\text{C}

. Calculate the specific heat of the unknown metal if water temperature stabilizes at

21.5^{\circ}\text{C}

. (Specific heat of brass is

394 \text{ J kg}^{-1} \text{ K}^{-1}

) a.

458 \text{ J kg}^{-1} \text{ K}^{-1}

1232 \text{ J kg}^{-1} \text{ K}^{-1}

916 \text{ J kg}^{-1} \text{ K}^{-1}

654 \text{ J kg}^{-1} \text{ K}^{-1}