Answer:
The density at 300 C is [tex]2641.68 kg/m^3[/tex].
Explanation:
density at 0 degree, d = 2700 kg/m3
coefficient of linear expansion, = 24 x 10^{-6} /K
Let the density at 300 C is d'.
Use the formula of the cubical expansion
[tex]d'= d (1-3\alpha \Delta T)\\\\d'= 2700(1- 3 \times 24\times 10^{-6}\times 300)\\\\d' = 2641.68 kg/m^3[/tex]
