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Atmospheric gases can be liquefied by (i) increasing atmospheric pressure ; and (ii) decreasing temperature. By increasing pressure particles of the gas get compressed. Decreasing temperature reduces kinetic energy.
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What method is used to separate noble gases and air?
Fractional distillation is used to separate noble gases and air, by first liquifying the air and allowing the individual gasses to evaporate out at their respective boiling temperatures.
Describe two methods used to separate gaseous mixtures?
Using gravity to sort the gases by density such as CO2 displacing air which is lighter. A centrifuge uses spinning to increase the sorting speed.
What are the types of toxic gases?
blister gases, choking gases and nerve gases
Which gases are considered monatomic gases?
There are many gases that can be considered monatomic gases. Some of these gases are helium, neon, argon, krypton, xenon and radon and all of those gases are considered noble gases.
Greenhouse gases are -trapping gases?
Heat-trapping gases.
What method is used to separate noble gases and air?
Fractional distillation is used to separate noble gases and air, by first liquifying the air and allowing the individual gasses to evaporate out at their respective boiling temperatures.
What is a scientific word for melt?
the scientific word for melting is liquifying. the scientific word for melting is liquifying.
How do you seaperate gases?
Based on their volatility,temperature,pressure gases can by separated by different methods Eg: chromatography vaporisation crystallization etc..........
How is helium obtained in pure form?
Helium is obtained from liquifying natural gas
Does cooking reduce or add greenhouse gases?
Cooking technically adds greenhouse gases. The vapors and gases produced through the cooking process do add to greenhouse gases, but certain methods of cooking are worse than others.
What has the author H W Melville written?
H. W. Melville has written: 'Experimental methods in gas reactions' -- subject(s): Chemical reactions, Gases, Kinetic theory of gases
Where are ions and free particles formed?
Ions can be formed in solutions by dissociation, in gases by different methods of ionization, etc.
Is liquifying nitrogen a chemical change?
It is a chemical change because it can change back if you refreeze the nitrogen and it changed the chemical.
What is the scientific of saying melting?
The transformation from a solid to a liquid.
Why do helium neon and argon have no electronegativity values?
Electronegativity is a measurement of the power of an atom to attract electrons. The Noble gases, like helium, neon, and argon all have full valence shells. This means they are very stable and have no need to bond. There are several methods of calculating electronegativity, and some of those methods do give values for the Noble gases. However, these numbers are not generally meaningful since the noble gases do not have a measurable electron affinity. Several of the noble gases can form bonds under special curcumstances.
What has the author Ivan Petrovich Usiukin written?
Ivan Petrovich Usiukin has written: 'Plant and machinery for the separation of air by low temperature methods' -- subject(s): Liquefaction, Gases, Low temperature engineering 'Plant and machinery for the seperation of air by low temperature methods' -- subject(s): Liquefaction, Gases, Low temperature engineering
What is the process of turning gas into liquid called?
Liquifying (i think)Liquefaction. And it's more important than most people realize. We get pure gases like nitrogen and oxygen from liquified air because they become gasses at different temperatures, allowing us to separate them. Liquefaction of gasses is achieved through a combination of compression and heat removal.
