Examples of Gases

Edited By Team Careers360 | Updated on Jul 14, 2022 04:42 PM IST

Example of Gas

Gas is a type of state of matter which has no shape, size, and volume compared to solid and liquid form. Gas has a property that it takes the shape and volume of the container where it is present. For a gaseous matter, the particles that are elements or compounds are arranged in a way that the distance between two particles is very large. To find a particle in its gaseous form is difficult. Air is an example of gas where it contains different types of compounds. Air is present all around us and we cannot even think that it contains too many compounds of gases.

JEE Main 2025: Chemistry Formula | Study Materials | High Scoring Topics | Preparation Guide

JEE Main 2025: Syllabus | Sample Papers | Mock Tests | PYQs | Study Plan 100 Days

NEET 2025: Syllabus | High Scoring Topics | PYQs

This Story also Contains

Example of Gas
Ideal Gas Versus Real Gas
Gas Name
Types of Gas

Air is a mixture of nitrogen, carbon dioxide, oxygen, hydrogen, carbon dioxide, water vapor, and small amounts of other compounds like argon, neon, krypton, etc. The main component of air is nitrogen that is, 78 % of our air is filled with nitrogen gas. And then comes the oxygen about 20.9%. All the other gases in 0.17 %. At higher regions of air triatomic oxygen is found that is ozone.

Figure showing the composition of air

Also read -

Some of the very common examples of compounds that are present in their gaseous form are described below.

Air
Argon
Nitrogen
Carbon dioxide
Helium
Oxygen
Ozone
Water vapor

JEE Main Highest Scoring Chapters & Topics

Just Study 40% Syllabus and Score upto 100%

Download EBook

A molecule to be in its gaseous form requires certain conditions. But many elements can be accessed in their gaseous form even at room temperature and at ordinary pressure. They are hydrogen, oxygen, nitrogen, chlorine, and fluorine. And they are present in their diatomic form. That is H₂, O₂, N₂, Cl₂, and F₂. Oxygen tends to form gas even in its triatomic former and it is the very important compound ozone that is O₃ protects us from severe ultraviolet radiation.

The noble gases as the name itself were suggested that noble gases have a property of existing in gaseous form even at room temperature and it is present in its monoatomic form. That is He, Ne, Ar, Kr, Rn, etc. are all gases and given the name pure gases. Water is a compound that can exist in the vapor form that is the gaseous former only at a particular temperature and pressure. Water is a compound that is in liquid form at room temperature and ordinary pressure. The gaseous form of water at a particular temperature and pressure is called water vapor.

Ideal Gas Versus Real Gas

A gas that behaves based around the Kinetic molecular theory and according to the law of ideal gas is ideal. This means that the particles present in an ideal gas are not attracted to each other have no volume and their interaction is perfectly elastic. This fact is the only theoretical basis not any gas in the world is not ideal. But under certain condition that is at ordinary temperatures and pressures, their behavior is sometimes close to the ideal gas behavior that is verified by the use of ideal gas law. The behavior of real gases deviates from ideality at low temperatures and high-pressure conditions.

The reason behind this is that under high pressure the molecules of gases come close to each other and the behavior of gas is lost. And also at high pressure, a gas molecule can be compressed into its liquid form itself. So then what is the case of low-temperature, the particles present in the gases need the energy to vibrate and to interact. If the temperature is low the kinetic energy of the particle will be low and the nature of perfect elastic collision has been lost.

Related Topics,

Gas Name

Some of the gas name and their formula is given below.

Name	Formula
Carbon dioxide	CO₂
Oxygen	O₂
Nitrogen	N₂
Helium	He
Ozone	O₃
Fluorine	F₂

Also, students can refer,

Types of Gas

Some of the elements can exist in their gaseous form at the standard temperature for ordinary temperature and pressure but certain other elements cannot exist in these circumstances but can exist by applying certain conditions on it. Some of the types of gases based on this are described below.

Elemental Gases

The type of gases that can exist in their gaseous form even at the standard temperature or ordinary temperature and pressure is elemental gases. If the pressure or temperature is raised or lowered it can exist in a different form that is liquid form and its solid form. Examples of these elemental gases are hydrogen, oxygen, helium, fluorine, chlorine, etc.

Pure Gases

The gas that is made up of their atom that is present in a monoatomic former are called up you are gases. Examples of which included all the noble gases such as neon, helium, argon, krypton, etc. The picture of gases is shown below.

Picture of gases

Mixed Gases

The gases that contain more than one element or more than one atom are mixed gases that are it is a mixture of different and gases. Carbon dioxide is one of the very important examples as it is a mixture of carbon and oxygen. Acetylene C₂H₂, butane C₄H₁₀, ethane C₂H₆, methane CH₃, Sulphur hexafluoride SF₆, etc. are gas mixture examples.

Toxic Gases

The gases that are toxic which means can cause harm to people when they breathe. Ozone is a toxic gas. Carbon monoxide, hydrogen bromide, hydrogen chloride, ozone, nitrogen dioxide, etc. are some of the poison gas names.

Also check-

NCERT Chemistry Notes:

Frequently Asked Questions (FAQs)

1. What is the meaning of gas?

There are three different states for a matter that is solid, liquid and gas. Compared to the other two that is solid and liquid form, gases are entirely different from them. The state of matter where the particles present in it can travel freely is given the name the gas. And can take the shape of the vessel where it is present. For the other two that is liquid and solid the particles are arranged in a way that there is a kind of interaction exist between them. But in the case of gas, particles arrangement is very uncommon. That is the intermolecular force between two gases particle is very low and so the space they occupy is also very high. And this is the reason why gases are colorless and invisible. Due to the presence of large space in gas, this can be easily compressed by apply high pressure on it. By the application of high pressure, the particles that are large distances apart get closer and converted into liquid form.

Water vapor is the best example for showing this property by compressing a water vapor at high pressure and a particular temperature, it can be again converted into its liquid form. Again by raising the temperature and releasing the pressure of the liquid form of water can be converted into its gaseous form also. Understanding the shape of a gas is also very and familiar that is the shape changes by changing the vessel or container it is present. Our atmosphere is the best example where it contains many gases some of them are nitrogen, oxygen, hydrogen, carbon dioxide, etc. So the air we breathe contains not only oxygen but also many other compounds also. Pressurized carbon dioxide, methane, ethanol, etc. are gas to liquid examples. This is the gaseous meaning.

2. What are examples of matter?

Anything that has mass, volume and can touch, smell, and taste are matter. Elements, compounds, clouds, paper, steel, sand, etc. are all matter.

3. How many types of gas?

There are mainly four types of gas they are; elemental, mixed, pure, and toxic gas.

4. What is gas in science?

When particles are arranged in a way that there is no intermolecular interaction between particles are gas. And has the shape to the container to which it is present. Carbon dioxide, oxygen, ozone, etc. are all gases.

5. Is water vapor a gas?

Yes, water exists in the gaseous form as water vapour.