Respuesta :

Answer:

Explanation:

rise in temperature, ΔT = 250 °C

coefficient of cubical expansion of aluminium, γ = 69 x 10^-6 /°C

So, the percentage increase in volume is

ΔV/ V = γ  x ΔT = 69 x 10^-6 x 250

ΔV/ V = 0.01725

ΔV/V x 100 % = 1.725 %

Otras preguntas