The way their particles or molecules are placed.
What is a matter of gas.
The molecules in gases are really spread out full of energy and constantly moving around in random ways.
It doesn t matter how big the container is.
If not confined to a container gaseous matter also known as vapor will disperse into space the term gas is also used in reference to the state or condition.
The molecules of gas are completly free and move around very fast away from other molecules.
Oxygen or compound molecules made from a variety of atoms e g.
Gases can fill a container of any size or shape.
A gas has neither a defined shape nor volume.
The remarkable feature of gases is that they appear to have no structure at all.
Several exotic states also exist.
The three main states of matter are solid liquid and gas.
Some introductory chemistry texts name solids liquids and gases as the three states of matter but higher level texts recognize plasma as the fourth state of matter.
A solid has a defined shape and volume.
What is another physical characteristic of gases.
The molecules of liquid are more free and move around.
An example is liquid water.
Unlike solids and liquids gases will occupy the entire container that encloses them.
A noble gas like neon elemental molecules made from one type of atom e g.
Gas is one of the four fundamental states of matter the others being solid liquid and plasma a pure gas may be made up of individual atoms e g.
All gases have weight.
Carbon dioxide a gas mixture such as air contains a variety of pure gases.
Some gases are visible e g.
Gases have lower density than other states of matter such as solids and liquids there is a great deal of empty space between.
The molcules of solids are placed very close together and cannot move.
A liquid has a defined volume but can change state.
They have neither a definite size nor shape whereas ordinary solids have both a definite size and a definite shape and liquids have a definite size or volume even though they.
Water vapor is an.
A gas is a sample of matter that conforms to the shape of a container in which it is held and acquires a uniform density inside the container even in the presence of gravity and regardless of the amount of substance in the container.
Nitrogen dioxide and chlorine gas but these are rarely encountered by students.
Solids such as wood and stone have a fixed shape that is difficult to change.
Why makes the three states of matter different.
Gases such as air are the lightest state of matter.
Gas one of the three fundamental states of matter with distinctly different properties from the liquid and solid states.
Gas is a state of matter that has no fixed shape and no fixed volume.
A common example is ice.
In addition to solids and liquids gases are also a physical state in which matter can occur.
The molecules spread out to fill the whole space equally.
Matter that can change both shape and volume is called a gas.
Think about a balloon.
