A rectangular metal block of volume 10-6m3 at 273k is heated to 573k. If its coefficient of linear expansion is 1.2 x 10-5k-1, the percentage change of it v...

A rectangular metal block of volume 10-6m3 at 273k is heated to 573k. If its coefficient of linear expansion is 1.2 x 10-5k-1, the percentage change of it volume is

Answer Details

Y = $\frac{\Delta V}{V\times \Delta \theta }$

3 x 10-5 x 1.2 = $\frac{\Delta V}{{10}^{-6}\times (573-273)}$

$\Delta$V = 1080 x 10-11m3

%$\Delta$V = $\frac{1080\times 10}{{10}^{-6}}$ x 100

= 1.08%

$\approx$ = 1.1%