सर जी ईश्वर आपको दीर्घायु प्रदान करें |आप के इस नेक कार्य से हम गरीब छात्रों को अत्यधिक सहायता प्राप्त हो रही है |गुरूवर इसी प्रकार अपनी कृपा दृष्टि हम पर बनाये रखना l मोहित तिवारी
Sir What is the solution of this problem , 2kg of air enclosed in a rigid container recives 0.2kj of paddle wheel work and 0.5 kj electrical energy per second .Heat loss from the system is0.6kj/s. If the temperature is 25.c what will be the temperature after 5 minutes ?
sir in free expansion work done is zero as work has not crossed system boundary.. in the similar way can i also say that in piston arrangement the work done is zero??? as it is also has same condition to that of the system taken for free expansion case
In piston cylinder arrangement suppose u have put some weight on piston... Due to reaction force of gases the weight will lift upward... Hence gases are doing some work. So piston cylinder arrangement is not free expansion
sir apke views bhot Kam jate hn itna acha padhane k bavjood ,,,, ap sir thoda jaise ye exampur, WiFi channel wale jo log kar rahe han vaisa kijiye,,,, paper discussion ,,, kuch specific exam ka syllabus batana ,,, particular exam k Naam se course padhana ,,,, special class karvana of important question or to sir AAP sabh kafi acha padate ho.....
Yes Example: Water, Water Vapour, Ice 🧊 The condition for pure subs. Is that the chemical composition of that subs. is same throughout. Water: Chemical Composition is H2O. Water Vapour: Chemical Composition H2O And similar for ice 🧊 H2O. So, on mixing also there chemical composition will remain same. Will exist in pure state.
Sir kai log esa boltey h k nozzle , diffuser ese components me koi device nai lgaa jo work produce kre Es liye w=o in such cases! Is it true say like this?
Sir aapney btaya tha k free expansion tab hoga jab system ki boundary displace hogi aur koi work nai mila. Ya phir work hua par system ki boundary displace nai hui Ese sbhi processes ko hum free expansion bolengey .sir g ye btaye ki system ki boundary displace hui es se aapka kya matlab h??? Kya aap yeh keh rhe h ki crossection change ho rha h Jaise ki nozzle ka example liya tha aapney. Use boundary displacement bolengey??? System ki boundary displace hona Es cheej ki clarity nai ho rhe Please clear my doubt!!
How can I write RT in the place of PV for polytropic process? Because it's condition is PV^n = constant, it is not PV = constant. I dont know am I right or wrong. Please reply sir.
Nozzle mein system ka displacement boundary ko cross karta hai. tau bha par work transfer zero kaise hua while Free expansion mein work transfer zero hai due to no displacement of system through the boundary.
@venugopal sharma - sir ji, please give ample time to transient flow of energy and charging and discharging of tank, ye kabhi bhi samajh ni aata h acche se
Seems serious mistake either in question or in the final result in the question at the last portion of the lecture! Please make clear or make corrections.
Because in free expansion boundary of the system changes rapidly means its change in state is not continous thats why it in not reversible and work transfer is possible for reversible process means integration of pdv is only possible for reversible process
work= force x displacement here the external force(pressure) is zero hence the work done is zero Note that this process is ideal and is not possible to demonstrate practically
@@bobbysingh9480 as i have seen ur reply u have mentioned change in state is not contineous that means process might be quasistatic and a quasistatic process is almost reversible in nature so ......
Sir what do you mean by work or energy crosses the system boundary. Please give some realistic example. And sir in practical life in nozzles there is no absolute vacuum then how can we can say that work is zero.
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सर जी ईश्वर आपको दीर्घायु प्रदान करें |आप के इस नेक कार्य से हम गरीब छात्रों को अत्यधिक सहायता प्राप्त हो रही है |गुरूवर इसी प्रकार अपनी कृपा दृष्टि हम पर बनाये रखना l
मोहित तिवारी
Really very nice concept and Cristal clear all topic in all your lecture ❤💕💕. Love you so much respected sir 💓💙
Polytropic index n, is -inf < n > inf or 0 < n > inf ? please clarify this as you have told the latter in the previous lecture.
also, I have this dought.
Bro.... polytropic index value varies from -inf to +inf
For Polytropic Process 0infinity
Sir, Please make video on Design of Machine element
No one can explain better then this thank u very much sir
sir thank you very much for make available these precious lecture 🙏
bahut accha padhate ho sir aap
Most valuable lecturer in thermodynamics
thank you sir you are too great .your lectures are very helpful for me
At 38:32, if the system is to be considered as the box having high pressure then the work transfer is possible
Thank you so much sir... 🥰🥰
Love from Odisha ❤❤.
Awesome sir no doubt at all thank u so much sir
Words will be insufficient to describe your knowledge and your teaching skill sir g🙏
Thank you so much sir Very helpful vedio
Happy teacher's day sir 🙏
Sir...your explanation is very good
Sir please daily video upload kijiye. . I daily wait for Ur video
Really awesome style
what is practicle meaning of polytrophic process
Any reversible process of gas or vapour involving both work and heat transfer. The system can both be open or closed.
Bahut achha sir
Best teacher
Very good teaching sir, easy to understanding.
Your all lectures are awesome
Sir polytrophic index is always positive because log is always positive
Sir,please clarify the range of poly index,in previous lecture you told zero to infi and in this lecture -infi to infi.
Same doubt sir plz clear
Zero to infinity
Thanks sir very clear now
Very nice sir❤
Sir what is main difference between reversible adiabatic and irriverisible adiabatic process.
thank you sir for this lecture 💯
Thanks for video sir
Thanks sir
Sir What is the solution of this problem , 2kg of air enclosed in a rigid container recives 0.2kj of paddle wheel work and 0.5 kj electrical energy per second .Heat loss from the system is0.6kj/s. If the temperature is 25.c what will be the temperature after 5 minutes ?
thankssir
Sir please upload the lecture for chemical engineering thermodynamics..plzzzzz
Sir pdf mil jaega apke notes ka.. Bht aasani hao jata pdhne me
Thanks alot sir.
Thanks sir 🙏🙏🙏🙏😊😊
Awesome sir
Sir please upload module 6,7,8 of thermodynamics
sir in free expansion work done is zero as work has not crossed system boundary.. in the similar way can i also say that in piston arrangement the work done is zero??? as it is also has same condition to that of the system taken for free expansion case
Free expansion for whose system boundary is changing is taken as zero
In piston cylinder arrangement suppose u have put some weight on piston... Due to reaction force of gases the weight will lift upward... Hence gases are doing some work. So piston cylinder arrangement is not free expansion
Piston cylinder arrangement me boundary ke bahar ham weight ko lift kr rhe hain to work transfer ho rha hai boundary ke bahar...
Good
sir apke views bhot Kam jate hn itna acha padhane k bavjood ,,,, ap sir thoda jaise ye exampur, WiFi channel wale jo log kar rahe han vaisa kijiye,,,, paper discussion ,,, kuch specific exam ka syllabus batana ,,, particular exam k Naam se course padhana ,,,, special class karvana of important question or to sir AAP sabh kafi acha padate ho.....
pure substance of different phases when mixed are also pure substance 27:30
Yes
Example:
Water, Water Vapour, Ice 🧊
The condition for pure subs. Is that the chemical composition of that subs. is same throughout.
Water: Chemical Composition is H2O.
Water Vapour: Chemical Composition H2O
And similar for ice 🧊 H2O.
So, on mixing also there chemical composition will remain same. Will exist in pure state.
@@shashwatpandey5344 but concept was chemical composition along with physical structure how can ur quotes that r cited above can be true pls explain
Sir padhate samay uska Thora Desi example bhi de de ki kya hai aur kaise hai
Sir kai log esa boltey h k nozzle , diffuser ese components me koi device nai lgaa jo work produce kre
Es liye w=o in such cases!
Is it true say like this?
Koi batayega sir ne quadrant galat kyu likha h downside toh negative hota h n
Sir aapney btaya tha k free expansion tab hoga jab system ki boundary displace hogi aur koi work nai mila.
Ya phir work hua par system ki boundary displace nai hui
Ese sbhi processes ko hum free expansion bolengey
.sir g ye btaye ki system ki boundary displace hui es se aapka kya matlab h???
Kya aap yeh keh rhe h ki crossection change ho rha h
Jaise ki nozzle ka example liya tha aapney. Use boundary displacement bolengey???
System ki boundary displace hona
Es cheej ki clarity nai ho rhe
Please clear my doubt!!
Nice sir
Keep it up
Polytropic process kaha dekh sakte hai in application
Ossm lec sir
thanks sir have a nice dAY
Please remaining video upload quickly sir
sir during free expansion process will there be any change in temperature??
May or may not be increase of temp
sir aap online classes bhi lgate ho
Sir ho sake to mechatronics subject ka video upload kijiye
Sir definition bhi likha kijiye
How can I write RT in the place of PV for polytropic process? Because it's condition is PV^n = constant, it is not PV = constant. I dont know am I right or wrong. Please reply sir.
pv=rt
For any ideal gas PV=RT. Here T is not const. So PV is not const.
Self
5:50
question book milegi?
sir I am preparing for IES, for that in Thermodynamics solving more number of numericals which book should I prefer ?
Niggaloli
PK nag
pk nag
nikal gayi kya IES?
Pdf kaha milega iska?
Nozzle mein system ka displacement boundary ko cross karta hai. tau bha par work transfer zero kaise hua while Free expansion mein work transfer zero hai due to no displacement of system through the boundary.
@venugopal sharma - sir ji, please give ample time to transient flow of energy and charging and discharging of tank, ye kabhi bhi samajh ni aata h acche se
10:15...... important
30:00 is imp
Nice sir come back soon
Sir nath 4 bhi kariye na plzzz
Thanks for this ❤️✨ Can you please share some statics lectures.
Seems serious mistake either in question or in the final result in the question at the last portion of the lecture! Please make clear or make corrections.
I can't understand the step...
PV = Constant
P.dV + V.dP = 0
Please explain...
Differentiation of pv
But sir keep uploading quite fast plz
Sir module 3-7link send plz
Sir what will be the ratio of two intensive property
Extensive
Sir I wants to contact with you
Sir
Materials science and engineering ka videos upload kijiye please sir
Sir the value of n is 0 to infinity or it is -infinity to +infinity
I think 0 to infinity
0 to infinity
11:26
Why adiabatic is equal to isothermal
Sir, in the previous lecture u told n lies between 0 and infinity bt in this lecture u sd between -infinity to infinity, which is right sir?
its from 0 to infinity..if you wanna confirm, then can simply google it
Value of n for any polytropic process can very from 0 to infinity.
Sir numericals ka video jyada karo sir
Gate me theory nahi numericals ate hai
concept ke saath me question nahi kaarwa rha h issa bhadiya to NPTEL ke dekho kam se kam concept ke sath 1-2 example to karwa ta h
To tumhara g@. Nd kiyu fatt rha😂... Jaso dusre jgh pdho😅
Free expansion daut hai
Only 360p nothing is clear
What about the negative sign in the equation?? In the Last question
Could someone please explain me in detail on why there is zero work transfer during free expansion?
Because in free expansion boundary of the system changes rapidly means its change in state is not continous thats why it in not reversible and work transfer is possible for reversible process means integration of pdv is only possible for reversible process
work= force x displacement
here the external force(pressure) is zero
hence the work done is zero
Note that this process is ideal and is not possible to demonstrate practically
@@bobbysingh9480 as i have seen ur reply u have mentioned change in state is not contineous that means process might be quasistatic and a quasistatic process is almost reversible in nature so ......
At 12:00 I thought my headphones 🎧 were damaged
Sir what do you mean by work or energy crosses the system boundary. Please give some realistic example. And sir in practical life in nozzles there is no absolute vacuum then how can we can say that work is zero.
chemical engineering ke video upload kijiye sir please
Thanks sir
Theory bahut padhate hai
I WİSH THİS PROUNNCE WİLL BE TURKİSH::(
Niggaloli
Thank you so much sir
Thanks sir
Niggaloli
thank you so much sir
Niggaloli
Thank you sir .
Thank you sir