If a soft-drink bottle whose volume is 1.10 L is completely filled with water and then frozen to -10 ∘C, what volume does the ice occupy? Water has a density of 0.997 g/cm3 at 25 ∘C; ice has a density of 0.917 g/cm3 at -10 ∘C.

Respuesta :

Answer:

The ice occupies a volume of 1.196 liters at -10 ºC.

Explanation:

We must remember that density ([tex]\rho[/tex]), measured in grams per cubic centimeters, is the ratio of mass ([tex]m[/tex]), measured in grams, to occupied volume ([tex]V[/tex]), measured in cubic centimeters, that is:

[tex]\rho = \frac{m}{V}[/tex]

We clear the mass within the formula:

[tex]m = \rho\cdot V[/tex]

The mass of the water inside the soft-drink bottle is: ([tex]\rho = 0.997\,\frac{g}{cm^{3}}[/tex] and [tex]V = 1100\,cm^{3}[/tex])

[tex]m =\left(0.997\,\frac{g}{cm^{3}} \right)\cdot (1100\,cm^{3})[/tex]

[tex]m = 1096.7\,g[/tex]

There are 1096.7 grams of water filling the soft-drink bottle completely.

Then, the water is frozen to -10 ºC and transformed into ice, the volume occupied by the ice which we can deduct from definition of density. That is:

[tex]V = \frac{m}{\rho}[/tex]

The volume occupied by the ice inside the soft-drink bottle is: ([tex]m = 1096.7\,g[/tex] and [tex]\rho = 0.917\,\frac{g}{cm^{3}}[/tex])

[tex]V = \frac{1096.7\,g}{0.917\,\frac{g}{cm^{3}} }[/tex]

[tex]V = 1195.965\,cm^{3}\,(1.196\,L)[/tex]

The ice occupies a volume of 1.196 liters at -10 ºC.