STRUCTURE AND PROPERTIES OF MATTER
Structure of Matter
State of matter is defined in terms of the phase transitions which indicate the change in structure and properties. Solids, liquids and gases all are made up of microscopic particles. The behavior of all these particles also varies in three phases.
The Concept of Matter
Explain the concept of matter
Matter is anything, such as a solid, liquid or gas, that has weight (mass) and occupies space. For anything to occupy space, it must have volume.
The Particular Nature of Matte
Justify the particulate nature of matter
Matter is made up of tiny particles. The particles are atom or molecules, examples of substances, which are made up of atoms, are: gold, copper, Argon and silver; and those made up of molecules includes oxygen, water and ammonia.
In solid, storm’s attractive forces hold molecules together so that they are not free to move but they can only vibrate about their mean positions.
In liquids there are weak forces of attraction between molecules therefore the molecules are free to move randomly. The distances between molecules in liquids are therefore are larger than in solids.
In case of gases the molecules experience very weak forces of attraction and hence they are free to move randomly filling the whole space of the containing vessel. The distances between molecules in gases are comparatively greater than those in solids and liquids as shown in the figure above.
There are three main parts of the Kinetic theory of matter. This includes:
Matter is made up of tiny invisible part.
Matter comes in different sizes.
There is a point that the smallest particles of matter can be the fastest.
- Solid state
- Liquid state
- Gaseous state
Solid state is the state of matter, which include solid materials, in which the intermolecular force between molecules are greatest and distance between molecules is small. Examples of solid state are wood, iron, etc.
Gaseous state is the state of matter in which there is no intermolecular forces between molecules hence molecules are free to move from one place to another examples of gases are hydrogen, oxygen, carbon dioxide gas.
|Solid state||Liquid state||Gaseous state.|
|It concerns with solid matter||It concerns with liquids/ fluids matter||It concerns with gases|
|Have high intermolecular||Low intermolecular force||No intermolecular force|
|No distance between molecules||There is little distance between molecules||Molecules are far from each other|
|Good examples are iron materials, woods etc.||Good examples are water, soda, kerosene and petrol||Good examples are oxygen and hydrogen|