What Is A Matter Of Gas

Gas is a state of matter that has no fixed shape and no fixed volume.

What is a matter of gas.

Gases have lower density than other states of matter such as solids and liquids there is a great deal of empty space between. All gases have weight. In addition to solids and liquids gases are also a physical state in which matter can occur. It doesn t matter how big the container is.

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. They are easy to push through and may not be visible to human eyes.

The molcules of solids are placed very close together and cannot move. A gas has neither a defined shape nor volume. Carbon dioxide a gas mixture such as air contains a variety of pure gases. The molecules of liquid are more free and move around.

A common example is ice. Gases such as air are the lightest state of matter. Some gases are visible e g. The particles in a gas are not connected to each other so they can float around freely.

A noble gas like neon elemental molecules made from one type of atom e g. What is another physical characteristic of gases. 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. Unlike solids and liquids gases will occupy the entire container that encloses them.

The molecules in gases are really spread out full of energy and constantly moving around in random ways. A solid has a defined shape and volume. Think about a balloon. 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.

Nitrogen dioxide and chlorine gas but these are rarely encountered by students. The molecules spread out to fill the whole space equally. Matter that can change both shape and volume is called a gas. Plasma is the fourth state of matter.

Why makes the three states of matter different. The three main states of matter are solid liquid and gas. Solids such as wood and stone have a fixed shape that is difficult to change. The way their particles or molecules are placed.

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. A liquid has a defined volume but can change state. An example is liquid water. 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.

Water vapor is an. Several exotic states also exist.