A sample of an alloy has a specific heat capacity of below and above that temperature

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

Problem

500\,\text{g}

sample of an alloy has a specific heat capacity of

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

below

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

and

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

above that temperature. How much heat is required to raise the alloy’s temperature from

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

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

? (a)

2.50\times10^{4}\,\text{J}

(b)

3.25\times10^{4}\,\text{J}

(c)

3.00\times10^{4}\,\text{J}

(d)

3.75\times10^{4}\,\text{J}