Thermodynamic Wok | 5 Minute Chemistry | Shishir Mittal | SM Sir
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Shishir Mittal | SM Sir
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• Ans & Solution | Therm...
Thermodynamic Wok | 5 Minute Chemistry | Shishir Mittal | SM Sir
AAH SAMAJH GYE HUM ! presuure sirf reversible work k liye defined hota hai
Since electrons are now part of the system there are 4 type of forces responsible
1. Electronic repulsion
2. Surface tension
3. Force due to atmospheric pressure
4. Force due to Internal pressure
Since there is overall expansion hence
The work done by electronic repulsion is +ve and that of surface tension is - ve
Work done by atmosphere is -ve and air inside is +ve. Since the internal energy of the system is decreased in this process hence there is a thermodynamic work involved .
There is no work done by air inside
Sir aap se ache teacher मैंने अपनी लाइफ मे Nhi dekhr
Yes work is involved in this processs and Work is done on the system.
Wrong
work is done by the system as pressure innside decreases due to electrostatic pressure (sigma)2/2e(ebsilon not)
The best concept learning method ever... For thermodynamic work👌👌👌👌👌 THANKS SM SIR..⚡⚡⚡⚡⚡⚡
Yes work is involved.. Electrostatic work.
Work done on the system,and +ve work.
Amazing way of visualizing SiR... Thanks a lot. !!
Sir i loved your teaching techniques. Please continue with more inorganic facts and reactions. I want to learn more ioc reaction. Please please please continue 5 min ioc chemistry in season 2
Thanks a lot for all the content you provided
SM Sir will be live on Saturday 4th June 8pm to discuss last minute JEE 2022 Mains strategy. Please set the reminder here -
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Yes sir work is involved in the given process
Here , +ve work done by the electric force since due to repulsion between electrons bubble expands and
-ve work done by the atmosphere as pressure inside the bubble decreases due to expansion and outside pressure remains constant
Work is done on the system to expand the bubble against the atmospheric pressure and electrostatic force is the driving force which worked untill equilibrium is achieved..
sir you are great.
In case of soap bubble when electrons disperse over it its size(volume) increases due to electrostatic repulsions. And considering it as a system (bubble and electrons) work is done by the system to expand against surrounding. It can be also understood taking work done of expansion of bubble. As bubble expands it releases energy so the work is done by it.🙏
The work done by the system
Osm concept
Yes work by system and electrostatic forces
I also used to criticize questions like Respected Shishir sir acted. It's really a confusing concept due to different sign convention in Physics.
Thank you Sir🙏
Yes sir there are two types of works involved..
+ve work---> work done by the e- beam on the system (bubble)because it is hitting the soap bubble
-ve work----> work done by the system ( bubble) by applying force of (4S/R)*area... To accomodate the -vely charged e-s on its surface( which is also -vely charged) and oppose the electrostatic repulsions ..and hence leading to increase in the volume.
Bro sorry but surface tension is not taken into consideration
@@umaghosh3099why?
Thank u sir...
Yes work is done by the system!!! Pv work and electrical work involved!!
Mera sabhi sahi tha sir..... thank u for revising my concept
In soap bubble problem, i think the air inside the bubble is not changed and due to charge distribution concept the e will equal get distributed on the surface of the bubble, which overall make bubble more in size...
I think electrostatic work is done bcoz of repeltion b/w electrons and electrons present on air bubble , apply the force on air bubble tries to contract the bubble.
So work done on the system...
Work is done by the system since its expanding forces involved are electroststic and surface tension.
work is done by the system as bubble expand and electric work done on system by electrons.
waah ji wah
thank you sir
Yes...sir work is done by the system..because in state1 electrons on the surface of bubble are part of the system....in state 2 volume of the system increases...so work is done by the system
sir in my opinion the thermodynamic work is done by the system that is gas. because the system has three types of energy these are electrostatic potential energy that becomes less negative on increasing volume of bubble and the second energy is surface tension energy which increases as the surface area of the bubble increases and the last form of energy is energy of gas. since both the surface energy and the electrostatic energy also increases. hence the system must have done work
3 types of work are in involved-
1.Electrostatic work
2.PV work due to expansion of air
3.Work done by surface tension force.
Sir agar app sare lectures free mai provide to appka material TH-cam mai trending mai chalega . Aur app usmai adds dalege to appko paise bhi milege
Aur jab lakho log appki videos dekhege to appko khub saari blessings bhi milegi
Ek bar karkr dekhiye essa kam dil khush hojata hai 😊 itna punnya kamm hai ye
This include pv work done by system, electrostatic work in bring charge stored as electrostatic potential enegy, surface area of bubble increase so some enegy is spend there heat may release.
electrostatic pressure k kran soap bubble ki size badi hogi...work done positive hoga....
Yes work is done by the system as due to electrons over the bubble increses the electrostatic pressure inside the bubble.
work is done by the sys as its energy is decreasing the type of work is the electrostatic work only
Work done by the system
electrostatic work work is done and with that the pv work is also involved cause their is work done by the excess pressure inside the bulbble.... and the work is done on the system. :)
Net work done by system as it expands
Which is pv work(by system)
While another is external work
Sir
Work is done on the system
Sir due to electronic repulsion size of soap bubble increase and since volume is increased that is work is done by the system over surrounding and the force that govern the work is electrostatic force.
Sir make a video about the anthlpy delta G
work done is involved. electron to get stability on surface of bubble this happens. and additional pressure is acting on it that is electrostatic pressure of value (sigma)²/2E⁰
My ans matches with yours. In first case electrons were accumulated on the surface and hence became the part of the system . In the second case, internal pressure of the system increased due to electrostatic pressure as you said and atmospheric pressure remained constant. To cover up this pressure diff the volume of system increased. As you know when volume increases work is done by the system on the surrounding
Work is done on the system
Self energy of spherical soap bubble having charge is inversely proportional to R as R increases self energy decreases hence work is done by system
Isothermal work...is done by system...
Sir aap jo 6 questions karwaye usko m alag tarah sochi...dq=du+dw...
Agar hm ek bubble layer assume krenge to dq=0 leke dng nikal rhi thi ..jiska dng -ve uska wd +ve (on the system)
Jiska du+ve
Uska wd -ve (by the system)
Isse mera sara ans aagya...456 ko chood ke...but mera ans sara sahi tha...sir kua ye logic sahi tha?
Yes electrostatic work and pv work are involved
Both electrical and PV work because electrostatic repulsion is increasing the radius and the since it generates a pressure on the concave side we can say that a change in volume has been observed and work has been done by the system .
A,C,D +VE
Work done by the system and electrostatic pE
Sir please continue this initiative for jee 2021 as well..
Sir water spilled up on floor need energy to dry up. Who will provide that?? Off course fron atmosphere so. Work should be done on the system
yes repulsive force bw electron
Due to repulsion between electrons the volume expands so that the work is done by the system and this is of electrostatic work done
Work done on the system. Sir
work is done by the system because its volume increase
As the charges repel each other, so the volume of bubble increses. So there should be two types of work involved in the process electrostatic work (on the system) and thermodynamic work(by the system)
In first case electrons were accumulated on the surface and hence became the part of the system . In the second case, internal pressure of the system increased due to electrostatic pressure and atmospheric pressure remained constant. To cover up this pressure diff the volume of system increased. As we know , when volume increases work is done by the system on the surrounding
Only electrostatic work is done against tension force
Sir please continue such conceptual questions important for iitjee please
Sir aapne work>0 likh kar usse by the system bhi likha h but work done by the system on surrounding is negative as per chemistry sign convention
amazing video
Yes sir work has been done as it affects the system
Considering electron also as your system work is done by the system where electrostatic potential energy is doing work on the surrounding (so by the system).....
work is done by the system
due to electronic repulsion the system expands and that expansion will need work to be done by the system
Sir plese make video on hofmann elimination
Yes Sir,
The work is done on the system.
Here the electrons which are accumulated on the surface of the sphere increase it’s internal energy.
Work is not done by the system because here (PV) is constant.
Is it correct sir ??
Wrong
@SIDDHARTH GUPTA
Yes bro,
I was wrong
Work will be done by the system
2 types of work are involved here i.e. in the form of electric potential energy and another in the form of increase in the surface energy of bubble
Delta V is greater than zero.
Due to electrostatic repulsion hence work is done on the system.😇😇😇😇
Please Sir make more videos on Physical Chemistry 🙏🙏🙏
Work done on the system
Isochoric , isothermal and adiabatic work
Loving chemistry ans / yessss work is done on system because electrons in first case are more energetic due to small size of bubble and if size increase repulsion is less and decrease in potential energy of electrons takes place and this energy increase the potential energy of bubble
I.e its size increses and also inside pressure is more than atmospheric pressure hence its size increses.
Sir what about the work done on the system that will be required to start the reaction?It is possible that the non pv work done on the system is greater than the pv work done by the gases released. So net can be +ve also??Please correct me if i am wrong.
Sir 2 type of work is involved here, the surface energy increases, and electric field is set up in the space which would account for additional 1/2eE^2Volume. , and work is done on the system.
Wrong
Sir then what will be the use of sign convention that we use in chemistry that if the system gets expanded then work done by system will be negative and work done by the surr will be +ve and vice versa .
Yes the kinetic energy of electrons get converted into PV work and volume change occour ,work done by the system
When electron comes on the bubbles. They repail each other by electrostatic force that's why bubbles size increase.
So work done on the system
in the first option (when caco3 is heated) since the gas is expanding hence according to IUPAC sign convention the work done by the system is negative hence the work done on the system is positive
what is wrong in it please explain ???
Bro, we never relate (inversely) W by sys to W on sys. Rather we relate (inversely) W by sys to W by surrounding. So, when we say W by sys is -ve it implies W by surr is +ve and not W on sys is +ve.
Hope this helps! Have a nice day.
See, the whole point of +ve or -ve work is whether the system or surrounding has gained energy or lost! Always try to solve from this perspective.
@@kumarshresth121 maja aagya jawan dekhke aur sunke
@@alokkumarshah6401 dhanyawad bro!
Good morning sir . The answer of the question is yes , work is involved in this process
In the last question
There 2 type of work done
Nature of work done is electrostatics..
Other work done is pdv hoga
Surface tension bhi koi cheez hoti hai
In 3,4and6 work done is positive
Sir last wale par to wd by the system nahi hoga kyuki elevator gravitational force ke against ja raha hai to uski khud ki kinetic energy kam ho rahi hai but potential energy bad rahi hai to kaise pata chalega
When sir says "An elevator ascends", he means that the elevator was initially at rest and it starts moving upwards, increasing both its kinetic and potential energy.
Ok it might be the reason
@@anishmajumder1371 thank you
Due to electronic repulsion the volume is increased but work is done on the system because this phenomena occurs due to electronic repulsion
My answer was correct
W.D on the system (electrostatic work)
Work done on the system 😆😇
Sir Maine sab sahi bataye 😁😀
So does it mean whenever there is an increase in entropy the work is done by the system and vise versa?
PLEASE BRING ATOMIC STRUCTURE CONFUSING TOPIC
2 types of works are involved
sir one on heterogenous equilibrium pls!!!
A very good morning sir
Sir please can you give handmade notes by you or your class topper
Sir please do previous year jee advance question 🎄🎄
Sir make a startegy video on jee advanced
Sir didnt understood 6 one...please help sir
Present sir