+91-705-589-3577
FlagBACK
Flag AIIMS MBBS> Please explain: The liquefaction behavior...
question mark

Please explain: The liquefaction behavior of temporary gases like CO2 approaches that of N2, O2 (permanent gases) as we go above critical temperature.

Abhishek Dogra , 7 Years ago
Grade 11
anser 1 Answers
Arun
The liquefaction of a gas occurs when the intermolecular forces of attraction reach a point (or become that much high) that they become capable to bind the gas molecules together to convert it into a liquid state.
The critical temperature of the gas on the other hand, is the measure to identify the strength of the intermolecular forces of attraction. 

As we move above the critical temperature, the liquefaction behaviour of CO2 would approach that of N2 and O2 due to the same reason. When liquefaction is complete, a steep curve is observed, and when we increase the temperature, the horizontal portion start becoming smaller, and after reaching a temperature 30.98oC, it gets reduced to a point 'E'.
Above this temperature, we cannot liquefy the gas but we can apply high pressure. So, this temperature of ​30.98oC is known as critical temperature.
 
So, weaker the intermolecular forces of attraction, the more difficult it would be to liquefy the gas, and therefore, the critical temperature will be lower for that gas.
Carbon dioxide gas has strong intermolecular forces of attraction, so they can be easily liquefied and hence, there critical temperature would be higher. And, CO2 below the critical temperature is known as carbon dioxide vapour.
Next, in N2 and O2 , intermolecular forces of attraction are weak, therefore it would be difficult to liquefy these gases, and thus their critical temperature would be lower than these gases.
 
 
Regards
Arun
ApprovedApproved
Last Activity: 7 Years ago
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on aiims mbbs

question mark
most scoring topics for neet?for all the subjects : chemisrtry,biology and physics
aiims mbbs
1 Answer Available

Last Activity: 3 Years ago

question mark
Consider the situation shown in figure. The strings are massless and pulley is fixed and frictionless. The speed of 3 kg mass just before touching the ground is (g = 10 m s-²)
aiims mbbs
1 Answer Available

Last Activity: 3 Years ago

question mark
Hi! My son would be taking his exam in May 2022. We need some counseling as to how to go about it as an NRI? 
 
 
aiims mbbs
1 Answer Available

Last Activity: 4 Years ago

question mark
I am not diagnosed with Schizoaffective disorder. I am recently diagnosed with Bipolar 1 disorder (most recent or current manic) along with the symptoms of grandiose delusions (According to the psychiatrist, I believe myself I am God). I am not diagnosed with schizoaffective disorder but I had taken Olanzapine (increased to 5 mg dosage) and this drug is used to treat Schizophrenia but as prescribed by Psychiatrist, I was taking Olanzapine not for Schizoaffective disorder but for Bipolar disorder along with delusions. Another Psychiatrist from Lybrate platform told me that, "you might be suffering from schizoaffective disorder, and it requires immediate action of a doctor. Consult a psychiatrist as soon as possible." So, does this mean that I am diagnosed with Schizoaffective disorder or suffering from Schizoaffective disorder? If I really have Schizoaffective disorder, then who will marry me? It's better to commit Suicide as Schizoaffective disorder is the most critical psychological disorder. Does the psychiatrist indirectly told me that I am having Schizoaffective disorder in the form of Bipolar 1 disorder along with grandiose delusions symptoms?
aiims mbbs
1 Answer Available

Last Activity: 4 Years ago

question mark
100 ml of gaseous hydrocarbon consumes 300 ml of oxygen for complete combustion. the hydrocarbon is
aiims mbbs
0 Answer Available

Last Activity: 4 Years ago