Physics

Problem

0.50\,\text{kg}

metal block is heated by an electric heater that supplies

200\,\text{W}

of power for

150\,\text{s}

. During the heating, the block’s temperature rises from

20^{\circ}\text{C}

50^{\circ}\text{C}

. What is the specific heat of the metal? a)

2.5\times10^{3}\,\text{J}\,(\text{kg}\cdot\text{K})^{-1}

1.0\times10^{3}\,\text{J}\,(\text{kg}\cdot\text{K})^{-1}

2.0\times10^{3}\,\text{J}\,(\text{kg}\cdot\text{K})^{-1}

1.5\times10^{3}\,\text{J}\,(\text{kg}\cdot\text{K})^{-1}