States of Matter Class 11 Chemistry Chapter 5 - Liquefaction of Gases

States of Matter Class 11 Chemistry Chapter 5 - Liquefaction of Gases
You can access complete course on www.LearnFatafat.com
Thomas Andrews performed some experiments on carbon dioxide gas to understand pressure-temperature-volume relations in both gaseous and liquid state. The gas behaves as ideal gas at this temperature. At this temperature, gas cannot be liquefied even by applying high pressure.
As, the temperature is lowered, gases show deviation from ideal behaviour. At 30.98℃ temperature and 73 atmospheric pressure, liquid carbon dioxide appears for first time. This temperature is the critical temperature i.e. Tc. . Volume of 1 mole of gas at critical temperature is called critical volume i.e. Vc and corresponding pressure is called critical pressure i.e. pc. All together, Tc, Vc ,, pc are called critical constants.
With increase in pressure more gas converted into liquid and volume reduces. With increase in pressure more carbon dioxide condenses and forms liquid carbon dioxide. Gradually all gaseous carbon dioxide get converted to liquid state. Further increase in pressure causes no effect on the volume as liquid is incompressible.
At 21.5 ℃ , gaseous carbon dioxide exists upto point B. at point B i.e. 60 atm pressure, liquefaction of carbon dioxide starts. It continues till point C where liquefaction is complete and gas is fully condensed.
At 13.1 ℃ and 50 atmosphere pressure the liquefaction start at I and completes at point J.
Thus we can say that the gas can be liquified easily at lower temperature and lower pressure..
Conclusions from Graphical Study:
In the region to the right of dome shape curve and to the right of 30.98 ℃ isotherm, carbon dioxide is in gas phase. However to the left of dome shaped curve and left of 30.98 ℃ isotherm, carbon dioxide is in liquid phase. In the region below dome shaped curve both, liquid phase and gaseous phase occur simultaneously and so this is the two-phase region.
It is possible to change a gas into liquid or liquid into gas by a process in which there is only one phase any time. e.g. gas phase can be converted to liquid phase by going via the curve A, F, G to H.
It is found that, all gases show same behaviour as that of carbon dioxide.
Since, there is continuity between gaseous and liquid state, so we use the term fluid to recognise their continuity.

[@Learnfatafat]

Thanks for watching video. You can access complete course on learnfatafat.com/cbse-class-xi/

[@pragyaminerva]

I was so confused with this particular topic but you really made my day. Thank you from the depth of my heart. Thanks.

[@harshinishivakumar3726]

Saving so much of time and making concepts crystal clear!!

[@nik_khatodiya]

It's very helpful video for me during this lockdown because I missi this lecture of my class teacher but I understand it completely in this video Thank so much for this video

[@R.Bharathkumar2003]

Thank you so much understood well because of showing piston and the gas in container thanks

[@Learnfatafat]

For more videos, please check - learnfatafat.com/

[@gauravkhochare6771]

really nice explanation with animation. I was looking for this. thank you

[@gayathri2844]

Very nice... Easily understandable...thank u so much..👌👌👌👌

[@arabindasinha8968]

Brief and perfect!

[@apnatime4831]

Thanks a lot , I didn't really understand what graph was saying at first but now I do

[@kavyagurjar8371]

nice it really helps a lot thanks

[@vaishnavianand5842]

Visualisation is best presented Thanks for the effort 😌

[@prekasu]

Thanks a lot!!

[@aabhasbhadauria1786]

Very nice and helpful Thankyou for the work

[@burhanbashir4950]

Thank you......truly

[@NarutoUzumaki-zj3qn]

Thank you mam for such a lovely explanation

[@ojasgupta1625]

Sincere thanks

[@anshikachavhan]

thnks for prefect lecture it was really helpful

[@Learnfatafat]

Keep watching! Visit www.LearnFatafat.com for complete course.

[@Vaidehi205]

Thank you so much ❤

[@harimansaini698]

Thank you so much

[@adityarajasekar5138]

Thanks

[@anitasen4035]

Thank you help alot

[@AvnishKumar-9892]

Thanks 🙏

[@rubin3310]

Great explaination

[@chouhanfamilychannel2605]

Thank you for this video

[@shifabadruddin]

Superb 👌👌👌

[@howtrending6448]

Good!

[@ajaykumar-im9hb]

Best explanation in minimal time

[@SportsEditzzs]

Thank you mam

[@vengapravallika5764]

🙏🙏🙏🙏 very useful

[@shlokthakur7133]

Good explanation

[@midhunbabucp3501]

Realy useful

[@nirbhayshekhar8936]

thanx mam

[@keerthipriyamangalapuri2516]

Mam amazing class

[@user-mk9vl8yk5d]

THANK YOUVRYYYYYYYYYYYYYYYYYY MUCH

[@mr.nobodybro.1200]

Thanks mam 🙏🙏🙏

[@b.barman4943]

Very nice video

[@aayshakhan4781]

splendid 👌 thanks alot

[@Learnfatafat]

You're Welcome :) !!! For more such videos download LearnFatafat Learning App - bit.ly/3dq1DCJ

[@raagaviv639]

Fantastic thank u so much😁😁

[@kokilag5546]

Put your head on my shoulder fan?

[@tinnydebnath497]

Best video

[@dnyaneshwarkoppad3364]

TQ very much

[@Learnfatafat]

Welcome. You can access complete course on learnfatafat.com/

[@deepakpatel4011]

Thanks mam very good congratulations from Deepak from gujarat 🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹🌹

[@chandradeepraut9306]

👍👍👍👍👍👍 well explained keep it up

[@Learnfatafat]

Thank You :) !!! For more such videos download LearnFatafat Learning App - bit.ly/3dq1DCJ

[@maheshmishra1373]

Awesome 🥰

[@Learnfatafat]

Thank you :) !!! For more such videos download LearnFatafat Learning App - bit.ly/3dq1DCJ

[@poonamdhuria8972]

Too goood😊😊💝

[@Learnfatafat]

Really happy to know :) !!! For more such videos download LearnFatafat Learning App - bit.ly/3dq1DCJ

[@proudindian79]

mam! I think it's liquification ???

[@glor5978]

Hi

[@umasrivastava4142]

Denks yaar.

[@siddharthchampia5674]

Too easy

[@vivekSingh-mn2mn]

Hindi ma nahi padha sakta tha