What’s more dense, a 10cm3 piece of aluminum or a 5cm3 piece of aluminum? Why?
- Posted:
- 3+ months ago by Lillyzimm...
- Topics:
- peace, dense, aluminum
Answers (2)
DENSITY OF ALUMINUM. The density of aluminum is about 0.1 lb/in3 [2,700 kg/m3] and density values of aluminum alloys don't vary much. Aluminum and aluminum alloys are characterized by a relatively low density compared to steel.
Density of Aluminum - Amesweb
www.amesweb.info/Materials/Density_of_Aluminum.aspx
Density is mass divided by volume. You might be able to pound a mass into a smaller volume, but density usually won't change much. Here are some examples of such experiments:
capturedlightning.com/newsite/shrunken-coins.html
1 cm^3 of aluminium (Al) has a mass of 2.70 g (at near room temperature 293.15 K, 20° C). Density ρ is expressed as mass m over volume V, ρ = m/V. So, Al has the density:
ρ_Al = 2.70 g cm^-3.
5 g of aluminium will require 5 times the space, thus the density is 5 g / 5 cm^3.
10 g of aluminium will require 10 times the space, thus the density is 10 g / 10 cm^3.
As k/k = k^1 * k^-1 = k^0 = 1, k ≠ 0, the density of 5 cm^3 Al and
the density of 10 cm^3 Al is identical.
en.wikipedia.org/wiki/Standard_conditions_for_temperature_and_pressure
en.wikipedia.org/wiki/Density
en.wikipedia.org/wiki/Aluminium
Gosh, I totally messed this up. Sorry.
CORRECTION:
1 cm^3 of aluminium (Al) has a mass of 2.70 g (at near room temperature 293.15 K, 20° C). Density ρ is expressed as mass m over volume V, ρ = m/V. So, Al has the density:
ρ_Al = 2.70 g cm^-3.
5 cm^3 of aluminium will have 5 times the mass, thus the density is
5 * 2.70 g / 5 cm^3.
10 cm^3 of aluminium will have 10 times the mass, thus the density is
10 * 2.70 g / 10 cm^3.