Physics

Problem

A steel block of mass

2\,\text{kg}

has a density of

7.85\,\text{g}\,\text{cm}^{-3}

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

. The coefficient of volume expansion of steel is

3.6 \times 10^{-5}\,\text{K}^{-1}

. The block is heated steadily to

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

. a. (i) Calculate the percentage change in the volume of the block. b. (ii) Determine its density at

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

, assuming no loss of mass.