How gases are liquefied?

How gases are liquefied?

Gases can be liquefied by applying pressure and lowering temperature. When a high pressure is applied to a gas, it gets compressed (into a small volume), and when we also lower its temperature, it gets liquefied. So, we can say that gases can be liquefied (turned into liquids) by compression and cooling.

How do we liquefy the gases Class 9?

When enough pressure is applied, the gases are highly compressed into a small volume. The particles of gases get so close together that they start attracting one another sufficiently to form a liquid. Therefore, Gases can be liquefied by applying high pressure and low temperature.

What is the process of liquefaction?

Liquefaction takes place when loosely packed, water-logged sediments at or near the ground surface lose their strength in response to strong ground shaking. Liquefaction occurring beneath buildings and other structures can cause major damage during earthquakes.

How are gases liquefied Class 11?

The liquefaction of a gas takes place when the intermolecular forces of attraction become so high that they bind the gas molecules together to form the liquid state. The pressure required to liquefy the gas at the critical temperature is called critical pressure .

What phenomenon occurs in liquefaction of gases?

Liquefaction of gases is physical conversion of a gas into a liquid state (condensation). The liquefaction of gases is a complicated process that uses various compressions and expansions to achieve high pressures and very low temperatures, using, for example, turboexpanders.

How can gas be liquefied Brainly?

Answer: Gases can be liquified by applying pressure and lowering the temperature. On applying pressure the gaseous particles come closer and start attracting eachother. When gas is compressed too much then hear is produced due to compression.

What are the ways to liquefy carbon dioxide?

Gaseous CO2 Gaseous CO2 can be liquefied under pressure provided its temperature is below 31 °C (87,8 °F), this temperature being referred to as the CRITICAL POINT. If compressed and cooled below the critical point, a colourless fluid, approximately the same density as water, is produced.

Where does liquefaction usually occur?

saturated soils
Liquefaction occurs in saturated soils, that is, soils in which the space between individual particles is completely filled with water. This water exerts a pressure on the soil particles that influences how tightly the particles themselves are pressed together.

What causes liquefaction?

Liquefaction occurs when vibrations or water pressure within a mass of soil cause the soil particles to lose contact with one another. This condition is usually temporary and is most often caused by an earthquake vibrating water-saturated fill or unconsolidated soil.

What is liquefaction of gases explain?

Which gas will liquefy first?

NH3
Higher the critical temperature, faster is the liquefaction of the gas. Hence, NH3 will liquefy first and N2 at last.

How does liquefaction of gases take place?

Liquefaction of a gas occurs when its molecules are pushed closer together . The molecules of any gas are relatively far apart from each other, while the molecules of a liquid are relatively close together.

How does pressure help in liquefaction of a gas?

As the pressure increases the volume of the gas decreases from point a to b. Then there is a sudden reduction in volume without much increase in pressure of the gas from b to c. In this portion liquefaction is taking place at constant pressure and due to the difference in the properties of gas and liquid the volume is reducing so much.

How can gases be liquefied?

In general, gases can be liquefied by one of three general methods:(1) by compressing the gas at temperatures less than its critical temperature; (2) by making the gas do some kind of work against an external force, causing the gas to lose energy and change to the liquid state; and (3) by using the Joule-Thomson effect.

What are 10 examples of gas?

Here is a list of 10 gases and their uses: Oxygen (O 2): medical use, welding. Nitrogen (N 2): fire suppression, provides an inert atmosphere. Helium (He): balloons, medical equipment. Argon (Ar): welding, provides an inert atmosphere for materials. Carbon dioxide (CO 2): carbonated soft drinks. Acetylene (C 2H 2): welding.