Question

Why is density an important property of matter? Explain at least two ways in which density has practical importance regarding matter propeties.

Answer 1

Density is an important property of matter as it depends on the mass and volume of the substance. It is employed in the construction of ships, submarines and in aircraft flight.

Further explanation:

The property is a unique feature of the substance that differentiates it from the other substances. It is classified into two types:

1. Intensive properties:

These are the properties that depend on the nature of the substance. These don't depend on the size of the system. Their values remain unaltered even if the system is further divided into a number of subsystems. Temperature, refractive index, concentration, pressure, and density are some of the examples of intensive properties.

2. Extensive properties:

These are the properties that depend on the amount of the substance. These are additive in nature when a single system is divided into many subsystems. Mass, energy, size, weight, and length are some of the examples of extensive properties.

Density is considered as a characteristic property of the substance. It is an intensive property. It is defined as the mass per unit volume. It is generally represented by $\rho$ .

The formula to calculate the density of a substance is,

 $\text{Density of substance}(\rho)=\dfrac{\text{Mass of substance(M)}}{\text{Volume of substance(V)}}$

As we know, density is the ratio of mass and volume of the substance. It is used to describe the properties of matter. So it is an important property of matter.

Practical applications of density:

1. Density helps in predicting whether a particle will float or sink. It is an important property that is taken under consideration while constructing ships, boats, submarines, and hot air balloons. Helium balloons float as helium is less dense than air.

2. Density plays an important role in the flight of airplanes. Aerodynamic force is directly related to the density of air. Higher the density of air, more will be the aerodynamic force and vice-versa.

Learn more:

1. Calculation of volume of gas: brainly.com/question/3636135

2. Determine how many moles of water produce: brainly.com/question/1405182

Answer details:

Grade: Middle School

Subject: Chemistry

Chapter: Density

Keywords: intensive, extensive, density, mass, volume, mass of the substance, volume of substance, property, matter, nature, additive, same, amount, nature, temperature, refractive index, concentration, system, subsystems.

Answer 2

Density is a value for mass, such as kg, divided by a value for volume, such as m^3. Density is a physical property of a substance that represents the mass of that substance per unit volume. It is a property that can be used to describe a substance. It is important in industries because it can be used to determine other characteristic of a material. Changes in density of a substance also would help observers conclude the effect of certain conditions to a substance.