# Physical properties of matter

### Physical properties of matter:

Matter generally has two attributes. These are mass and space. Recall that matter is defined as anything that has mass and occupy space.

Before we look into the physical properties of matter, it will be a great idea if we first understood what physical properties really are.

### What are physical properties?

Physical properties can be defined as those features or characteristics on matter that can be measured without changing the composition of the substance (or what the matter is uniquely made of). For instance, the physical properties of iron will be attributed to those features that can be seen and measured on the iron provided it is yet to go through a chemical change. By chemical change, it is implied that the iron hasn't been converted into a new substance through a chemical reaction.

From the above instance, examples of physical properties of iron will include its color, density, mass, boiling point, melting points, malleability, ductility and so on.

The change associated with the physical properties of matter is termed a 'physical change'.

Physical properties of matter can be put into 2 categories. These are:

#### 1. Extensive Physical Properties:

They refer to the physical properties of matter that can be measured. Since the extensive physical properties of matter has to do with the amount (or quantity) of substances, they become a measurable factor at all times. For this reason, the extensive physical properties of matter will include measurable quantities like mole, mass, density and volume.

Extensive physical properties will always have a Standard International (SI) unit since they are measurable.

#### 2. Intensive Physical Properties:

They refer to the properties of matter that can't be measured, hence do not depend on the amount of substance. Examples are color, malleability, ductility, boiling point and melting point.

From the above explanations, the physical properties of matter will include the following:

Below are some notable points with regards to solubility:

1. The solute in solubility can be a solid, liquid or gas.

2. The solvent in solubility is always a liquid (usually water).

3. The mixture of NaCl or common salt (solute) in water (solvent) will result in the formation of a salt solution; and that is a physical change. Understand that NaCl is a crystalline solid. Also, it is highly soluble in water.

4. Mixtures can be separated through an appropriate separation technique. For instance, the above mixture (NaCl or salt solution) can be separated through evaporation.

• If you need a standard website at an affordable price.

• Online training on the academic subjects: biology, chemistry and basic science.

• If you require an advanced smart school management system (web application) for your school.