Examples of Gases: Definition, Properties, and Processes of Change

Examples of gas objects – In this world we will find various forms of objects. Not only solids and liquids. But gas objects are also often encountered in everyday life. It is undeniable that in this life the existence of gas objects really helps humans. For example, oxygen is also the largest gaseous form on earth.

Just like other forms of matter, gas objects also have the properties needed to meet the needs of our daily activities besides oxygen. Besides needing to know what are the examples of gas objects, you also need to know what things are related to gas objects.
Starting from the definition of gas objects, examples of gas objects, properties of gas objects, forms of changes in the form of gas objects and others. Even though you might have known a glimpse of gas objects before when you were at school.

But in this article, we will explain more deeply all things related to gas objects.

Definition of Gases

The first thing we will learn together is about the meaning of gas objects. Knowing the meaning of gas is the basis. So that it can also be said that an understanding of the meaning of gas objects is a foundation before going any further to understand what gas objects are.

A gas is a shape and form of matter that has a volume and shape with changing conditions according to the space it occupies. Even so the presence of gaseous bodies is very difficult to see with the naked eye.

Apart from not being able to be seen by a pair of human eyes, the presence of gas objects also cannot be grasped like solid objects. You can find gaseous substances anywhere because gaseous matter is air in the form of oxygen which can be in all corners of the earth.

Air or oxygen is an example of a gas object that we can use everyday to meet our survival needs. When the air or oxygen gas is from this earth, humans will automatically disappear or die. Therefore oxygen is a form of the largest gaseous matter on earth that can be found anywhere.

Furthermore, substances from gas objects will also always move freely wherever they want. This is what makes gaseous substances not have a fixed shape and can follow the shape of the container. In addition, the volume of gas objects will also continue to change.

These conditions make gas objects different from liquid or solid objects which incidentally have a more stable shape and volume. The freedom of molecules and motion makes air easier to change into other substances. In fact, these changes can change naturally without the need for human intervention.

Properties of Gases

Just like liquids and solids, gases also have their own properties. The existence of the nature of this gas object can also be a characteristic of the presence of gas objects. So below are some of the properties possessed by gas objects.

1. Always Fills the Entire Room It Occupies

Air is a mixture of various substances invisible to the eye. In addition, air also has no color and is odorless or odorless. However, air can still occupy a space which will then follow the shape of the space or container.

This can be proven when you blow air into a balloon. Within a certain period of time the balloon will change shape to become bigger. This condition occurs because the balloon is filled with air gas which is able to exert pressure on the rubber layer of the balloon.

The more you blow air into the balloon, the bigger the shape of the balloon. From this event it can be concluded that the shape of the gas can follow the shape of the container like a balloon. If a balloon has the shape of an animal’s head, then the gas form will also follow the shape of the balloon.

2. Be Every Place

Gas objects are also able to be in every place, so it will be easier for us to find wherever the place is. Ride it in the house, road or any environment there is always a gas object. Even in an empty room or place there must be a gas such as air or oxygen.

The colorless and odorless form of gas makes it invisible and undetectable. Even so, we as humans can still feel the existence of these gas objects.

The nature of gas objects that are always everywhere proves that human life is very dependent on the supply or presence of oxygen.

3. Able to Press in All Directions

Besides being able to fill every space it occupies, gas objects also have the property of being able to suppress in all directions the space they occupy. This can make gas objects not only fill or press in one direction but in all directions.

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To prove the existence of the properties of gas objects that can press in all directions, you can try to blow up a balloon. Later the balloon will be filled with gas until it gets a certain pressure which makes the change in the shape of the balloon bigger than its previous size. The gaseous substance is able to fill the entire balloon container by applying pressure to all parts of the container.

This condition can occur because gas objects have molecules that can move freely more easily so that they are able to exert a pressure on a certain space from all directions. The movement of gaseous substances in all directions can be caused by the presence of chemical gas elements which are indeed lighter when they are in the air.

4. Gases Have Heavy Mass

Even though gas objects are basically invisible, who would have thought that gas objects also have mass or an object’s weight. The mass or weight of a gas object is of course different from the mass size of a liquid or gas object.

Even in the calculations, the mass or weight of gaseous substances is also different, you know . For example, when calculating the mass of carbon dioxide gas with the dry weight of biomass and calculating the ideal gas equation.

To be able to find out the mass of a gas substance will also be influenced by the size of the pressure, volume and temperature around the substance. The gas mass on Earth has a rough volume composition of 68 percent nitrogen molecules, 21 percent oxygen molecules and 1 substitution of other gases which are contained in carbon dioxide molecules.

5. The distance between gaseous particles can change

As with solids and liquids, gases also have particles and molecules in their constituent elements. Although basically the level of velocity between particles of gas objects will be different from the particles in gas or liquid objects.

In addition, it is also necessary to know if the particles and molecules that make up the gas object have a distance that can change so that they are not fixed. This is very different from the particles and molecules in solids and liquids which tend to be more fixed.

The changing distance of the particles in the gas also makes it easier for gas objects to move freely to fill in all directions of the room or face even though the room is empty.

Even gaseous and liquid objects sometimes also have gas in them. This can happen because of the density of particles and molecules in gaseous substances that are so free and also tenuous.

6. Has an Irregular Particle Arrangement

When the distance between particles and molecules in a gas object is not fixed, the arrangement of particles in a gas object will also be irregular. The arrangement of particles will be easier to move which can also make it easier to change. This occurs in the form of other substances or only in the reduction of particles and also molecules.

Its irregular arrangement allows gas particles to easily change their mass and volume.

Basically, the particles that make up a gaseous body are very irregular. This makes gas substances not easily recognized by the human eye due to the chemical elements present in them. The chemical elements of gases will also be difficult to distinguish from one another from various kinds of symptoms, even though in this condition the chemical elements they contain are also different.

7. Has a Weak Particle Tensile Force

Gases have attractive forces that tend to be weaker between each particle that makes up the substance. In fact, many scientists explain that the attractive forces between the particles of gas objects are almost non-existent.

This can occur when the particle elements that make up the gaseous substance are very light and irregular, making it easier for the gaseous substance to be unstable. As a result, the force of attraction between the particles of gas is absent.

8. Free Particle Movement

The nature of gas objects that can move freely is influenced by the properties of other gas objects, such as particles that are not fixed and irregularly arranged, making it easier for them to move more freely in all directions. Of course this makes gas objects able to fill all the empty space.

Interestingly, gas objects can also be media for the propagation of certain energies such as light energy, sound to heat. Besides that, gaseous substances that move easily can also make a lot of energy appear more easily or form more easily.

You can try to prove the nature of gas bodies that move freely in naturally occurring winds. This makes it easier for gas objects to move irregularly according to the pressure or temperature in a particular room or area. Even though we can’t see it, it’s still easier to feel the gas moving in every time we are.

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Examples of Gases

From the explanation of the properties of gas objects above, of course, you also already know what are the examples of objects that are included in gas objects. It cannot be denied that currently the existence of gas objects will be very easy to find in this life, both naturally and gas objects made by human hands.

The existence of gaseous objects on earth is often used in various kinds of human activity needs. Even so there are several forms of gas objects that endanger human life. Therefore, we must know what gaseous objects are good or which can harm human life.

So below are some forms of gas objects that are around us today.

  1. The presence of oxygen is needed for human survival.
  2. There is a wind that moves in the air with a denser gas content.
  3. Fart is also an example of a gas object that comes out of the human body.
  4. There is smoke coming from the combustion process of solid or liquid objects.
  5. Carbon dioxide that exists naturally or as a result of human activities.
  6. The presence of carbon monoxide comes from human activities and occurs naturally.
  7. Nitrogen.
  8. Hydrogen.
  9. The occurrence of water vapor due to the evaporation process of liquid objects.
  10. The air in the balloon is blown by humans or through a pump.
  11. The air that is in a motorcycle tire or car tire.
  12. An empty glass that can be filled with air.
  13. An empty bottle that can be filled with air.
  14. A pump that can deliver air to several other objects such as tires or balloons.
  15. LPG.
  16. Perfume.
  18. Oxygen cylinders in the medical world.
  19. A fridge that has freon in it.

So, those are some examples of gaseous objects that you can read in full above.

Changes in the Form of Gas Objects

Not only solids and liquids that can change. Gases can also change. These changes can occur naturally or due to human intervention.

Then later these changes can be marked as physical and chemical changes that can affect the structure of the chemical elements contained in the gas. Now, to be clearer, here are some changes in the form of gas objects.

1. Condensing

Condensation is a change from a gas to a liquid. This process of change can occur due to changes in temperature pressure that are lower than before.

The easiest example is the condition of the leaves in the morning which become wet with dew. This condition can occur because the air at night becomes lower at the bottom compared to the air temperature at the top.

At night a lot of oxygen or O2 will be released resulting in H20 water in the form of dots or droplets of water which we will find more easily on the surface of the leaves in the morning. The change from a gas to a liquid is a chemical change caused by a change in the chemical element oxygen into water, even though the change in that element does not occur too far or is still one derivative.

2. Crystallize

Crystallization is a change from a gas to a solid. Just like changes in the condensation process, crystallization is also caused by lower changes in the air and when it reaches the earth’s surface.

The easiest example of crystallization is occurring in snow or empty bottle caps where over time spots or lumps of water will appear. From the existence of this change process, it can be a sign that a gas object is greatly influenced by the temperature and pressure conditions it receives.

When the gas in the air moves freely, it can trigger its unlimited distribution and temperature pressure can occur at any time. In addition, crystallization is also included in physical changes because it does not change chemical elements and only changes in shape and form.

3. Sublimation

It is a change of state from a solid to a gas. Gaseous substances produced from sublimation will be able to move freely in the air without any restrictions.
These changes can be found in mothballs that are simply placed in an open room. Which within a certain period of time the camphor will sublimate into the air.

4. Evaporation

Evaporation is also a process of changing from a liquid to a gas due to the help of heat or heat energy. Evaporation can change a liquid object into a gas object that can move freely in the air.

The easiest example of evaporation is when you boil water until it is boiling. When water boils, over time it will release steam into the air.

So that’s a summary of gas objects. Starting from the definition, properties, examples of gas objects, and the changes they have, you can read them here in full. Hopefully all the discussion above is useful and adds to Sinaumed’s’ insight.

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Author: Hendrik Nuryanto

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