What are gases? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What are gases? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

What are gases?

Matter exists in different forms. When it resembles air, it is a gas. Gas is made up of tiny particles that move freely. They seek to spread in space as far as possible. Therefore, the gas does not have a definite shape. It takes the form of the vessel in which it is located, spreading and occupying the entire volume of the vessel.

When a gas is in a container, its moving particles hit the walls and bounce off. Trillions and trillions of particles are constantly bouncing off the walls. When hit, each particle produces a push. Together they create pressure with these shocks. If the container is made smaller, it will have a smaller volume, the gas particles will be compressed more. They will be given less room to move. They hit the walls more often. Therefore, if the volume decreases, the pressure of the gas increases.

If the gas is heated, its particles move faster and the pressure increases. If the temperature drops, the particles move less quickly. If the temperature is low enough, the attraction of the particles to each other causes them to combine and remain in this state. The gas ceases to be a gas. It liquefies and becomes a liquid.

There are many different gases. The most common gas is air. In fact, it is a mixture of gases, the main ones being oxygen and nitrogen. Other common gases are nitrogen, carbon dioxide (which we exhale), carbon, exhaust gases (very abundant), helium, hydrogen, and methane.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why do hailstones have different sizes?

In some places where thunderstorms occur quite often, one thunderstorm in eight hundred is accompanied by hail the size of a walnut, and one thunderstorm in five thousand carries hail the size of a tennis ball. And you probably know from your own experience that hailstones can have other sizes. Hail usually falls in warm weather and is usually accompanied by thunder, lightning and rain.

Hail is formed when raindrops pass through a layer of cold air on their way to the ground and freeze. Individual raindrops form very small hailstones. Larger hailstones appear the same way, but when small hailstones fall and encounter strong updrafts along the way, they can rise to the point where raindrops form. More drops stick to the hailstone, and when it again flies through the cold layers, the water envelops it and freezes, thus increasing the size of the hailstone.

The hailstone can rise and fall repeatedly until it builds up a number of layers that increase its weight so much that it is able to overcome the force of the rising air currents and falls to the ground. Thus, hailstones with a diameter of 8-10 centimeters and a weight of up to 0,5 kg appear. Snow also freezes around hailstones when they are brought into areas where it forms. Therefore, hail often consists of layers of snow and ice.

The hail causes great damage every year. It destroys crops such as rye, wheat, cotton and tobacco. It can knock leaves off trees, shatter glass in windows, and even injure poultry and animals!

Test your knowledge! Did you know...

▪ How do meteorologists predict the weather?

▪ Where did the very first flush toilet appear?

▪ How did a sailor survive on a raft in the ocean for 133 days without water or food?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

Volvo Concept Truck Hybrid Truck 02.03.2017

Volvo Trucks has developed the first hybrid long haul truck, the Volvo Concept Truck, designed to maximize the efficiency of transporting goods.

The Volvo Concept Truck was first introduced last year. Thanks to a special design, fuel consumption and carbon dioxide emissions are reduced by about a third. Among the features of the truck are tires with reduced rolling resistance, improvements in aerodynamics, as well as deflector panels that cover the rear wheels of the tractor and all trailer wheels.

The new version of the concept is now equipped with a hybrid power plant - one of the first designed for long-haul transportation. The developers have implemented an energy recovery system that is activated when driving down a slope of more than 1% or when braking. The recovered energy is stored in the vehicle's batteries and is then used to propel the vehicle on flat roads or gentle slopes.

The Volvo I-See driver assistance system has been specially developed for the hybrid powertrain. This complex analyzes the topographic data of the route and calculates the most economical and efficient algorithm for using a diesel engine and an electric motor, as well as the optimal moments for using regenerated energy.

According to rough estimates, during each standard long-haul transportation, the hybrid power plant will allow you to overcome up to 30% of the travel time with the internal combustion engine turned off. This will provide fuel savings of up to 5-10%, depending on the type and specifications of the vehicle, as well as the mode of operation. In addition, it will also allow you to travel up to 10 km exclusively on electric traction.

Other interesting news:

▪ Platinum filament for fuel cell

▪ The computer will increase the harvest

▪ Ancient Roman concrete can be restored

▪ The oldest bacteria on earth

▪ Microsoft will decipher the human immune system

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Your stories. Article selection

▪ article by Alain (Emile-Auguste Chartier). Famous aphorisms

▪ article What does the popular Tunisian soda brand Boga have to do with Russia? Detailed answer

▪ article Hawthorn smooth. Legends, cultivation, methods of application

▪ article Push-pull amplifier based on triode-pentodes. Encyclopedia of radio electronics and electrical engineering

▪ article Voltmeter for laboratory power supplies. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews