Carbon dioxide a gas mixture such as air contains a variety of pure gases.
What is a matter of gas.
A solid has a defined shape and volume.
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.
Unlike solids and liquids gases will occupy the entire container that encloses them.
Oxygen or compound molecules made from a variety of atoms e g.
It doesn t matter how big the container is.
Gas one of the three fundamental states of matter with distinctly different properties from the liquid and solid states.
The molecules of gas are completly free and move around very fast away from other molecules.
Water vapor is an.
Gases such as air are the lightest state of matter.
The remarkable feature of gases is that they appear to have no structure at all.
The way their particles or molecules are placed.
The molecules in gases are really spread out full of energy and constantly moving around in random ways.
Solids such as wood and stone have a fixed shape that is difficult to change.
Gases can fill a container of any size or shape.
Matter that can change both shape and volume is called a gas.
Some gases are visible e g.
In addition to solids and liquids gases are also a physical state in which matter can occur.
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.
They are easy to push through and may not be visible to human eyes.
The particles in a gas are not connected to each other so they can float around freely.
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.
A noble gas like neon elemental molecules made from one type of atom e g.
All gases have weight.
A gas has neither a defined shape nor volume.
Gases have lower density than other states of matter such as solids and liquids there is a great deal of empty space between.
What is another physical characteristic of gases.
Why makes the three states of matter different.
Gas is a state of matter that has no fixed shape and no fixed volume.
A liquid has a defined volume but can change state.
A common example is ice.
The molcules of solids are placed very close together and cannot move.
Think about a balloon.
The molecules spread out to fill the whole space equally.
The molecules of liquid are more free and move around.
Several exotic states also exist.
An example is liquid water.
Nitrogen dioxide and chlorine gas but these are rarely encountered by students.
Plasma is the fourth state of matter.