Suggest a method to liquefy atmospheric gases.
Atmospheric gases can be liquified by
- Increasing pressure
- Decreasing temperature
When the atmospheric gases are compressed under high pressure , the particles of the gas come closer. Due to this, the space between the particles decreases.
After applying a certain pressure, the particles of gases start attracting each other, resulting in the formation of a liquid.
When the change of state from gaseous to liquid takes place, a lot of heat is released.
Hence, to take away this heat released during the process, the temperature is also decreased.