An unknown metal of mass 192 g heated to a temperature of was immersed into a brass…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Thermodynamics · Thermodynamics

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}

) (1)

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

(2)

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

(3)

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

(4)

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