How can the gases can be liquefied?

Answer 1

Liquefaction by cooling down (lower temperature) and compression (higher pressure)

Answer 2

Air can be liquified by one of two means. 1) Lower its temperature by an extreme amount. This works because by lowering the temperature, one causes its molecules to move more slowly, so when they collide with each other, they are more likely to stick together rather than bounce off each other. 2) Apply a lot of inward pressure on it. This works because applying inward pressure will push the molecules together. The only difference between a liquid and a gas is the space between the molecules and whether the molecules are bound to one another or free to roam around.

Answer 3

Gasses are compressed into a smaller volume and increase in temperature. By cooling the pressurized gas back to room temperature and then allowing the gas to expand the gas will cool below room temperature. This process is repeated until the gas in question is cold enough to exist in the liquid state.

Answer 4

Through pressure and by cooling down the gas to slow down the atoms' movement

Answer 5

Gases can be liquefied when they are compressed under high pressure.

Answer 6

gases can be liquifed because it have no rigid compressibility