When air is blown with your lips closer, it is acting like a nozzle. When a fluid flows through a nozzle, velocity increases where as pressure and temperature decreases. When you keep your mouth wide open and blow, your internal heat is being rejected without being any pressure drop. Hence the temperature is warmer.
@ManishkrNain8 жыл бұрын
yes u r right
@parikshit30228 жыл бұрын
thnx bro, I was searching it, for ages....
@peterpace33795 жыл бұрын
@@parikshit3022 behen*
@reavathyranisu75218 жыл бұрын
superrrr awsome class . i feel like studing is so so much simple.honestly speaking .thank u sir
@adiltantra16 жыл бұрын
i thank you sir from the bottom of my heart you have really taught me the essence of not only physics but also of leading a selfless life
@aheleeghosal39868 жыл бұрын
Sir,do we assume Cv as the specific heat of 1 mole of a gas at constant volume.
@jaspintkaur31286 жыл бұрын
5:25 pressure is inversely proportional to volume ......toh agar gas expand hogi to pressure kaise constant rahega.....pls anybody tell me
@vineetpal31347 жыл бұрын
sir you are outstanding teacher.....please keep motivate....always
@anweshabehera63186 жыл бұрын
Sir really aap se Accha physics koi nahi padha sakta h. Thanku so much sir for uploading these videos and making our concepts very much clear. 😊😊😊👍👍👍👍
@ranjantripathy593210 жыл бұрын
sir how volume changing by keeping pressure constant
@akbarkool10 жыл бұрын
Isnt Volume directly proportional to temperature? (Charles law) How come temperature of gas increases when piston is pushed to decrease volume?
@chintalapudiyatheendra10814 жыл бұрын
sir in isochoric process if there is no change in volume then there should be no work done but we have the equation for work done in isochoric process
@997160702911 жыл бұрын
plz help me frm where i get the chem videos.
@nikhilsharma60018 жыл бұрын
sir you are doing great job hats off to you
@idreesk77527 жыл бұрын
Sir 0 degree pe ice ne state chng kei but temperature wahe 0 degree he hy tu state kesy chng huwa????I mean normally hum ice ko heat energy di kr he melt karty hy tu agr temperature constant hy tu phir hum ne kei kya? ???? Plz answer me
@vineetkumar60998 жыл бұрын
Respected sir please explain how you have written equation of Adiabatic process and what doe's gamma signifies here.
@meeraunnikrishnan612012 жыл бұрын
THANKS A LOT SIR . THE WAY YOU TEACH IS SIMPLY AMAZING !!!
@bishalkhanal23197 жыл бұрын
sir Iam from Nepal and studying science i watches your lectures and it helped me a lot.thanks sir.
@nikhilmishra5597 жыл бұрын
Sir these all process which we discussed are reversible or irreversible and as in isothermal temp is constant as it icreases and then decreases...so in same way heat content can also be not same first increasing and then decreasing?
@hussnyazdan89198 жыл бұрын
during ice formation the volume is increased by 9% its is suitable to consider it negligible?
@ashishkumarbaloria45764 жыл бұрын
Sir plz tell me how volume changing by pressures constant
@PardeepKumar-ed9zu7 жыл бұрын
Sir can you please suggest me questions of nccert book that are important for exam
@turtlegrowth7 жыл бұрын
100degree celcius water or 100degree celcius steam who would have greater heat capacity sir?
@rahulpal70936 жыл бұрын
Sir ye videos cbse k point of views se h ya iit/jee k
@megha756411 жыл бұрын
sir mu is no of moles not molarity pls recheck molarity is property of a solution ..
@VinodKumar-gc7gj11 жыл бұрын
Sir, answer the question asked at the end of this video. The question is about blowing air on hand with mouth open and closed bring warm and cool sensation resp. How?
@deekshavarshney722410 жыл бұрын
Sir is evaporation of water isobaric or isochoric process?
@chintalapudiyatheendra10814 жыл бұрын
sir in work done by adiabatic process u said equation is pv power gama is equal to constant and if we take pv equal to muRT then whole thing will change and so why dont we use muRT instead of taking as constant
@prateekdang24078 жыл бұрын
sir, what is the answer of your last question?
@kanwalansari815810 жыл бұрын
sir if melting of ice is isothermal process so it internal energy also changes when it truns from ice to water while in isothermal process internal energy remains unchanged.
@hirotokiyama86749 жыл бұрын
Sir in the textbook the equation for work done is given by 2.303nRT logV1/V2 as it was converted from ln. But sir you have only mentioned nRT logV1/V2
@shashwatkeshri12 жыл бұрын
integration of (1/v)dv = log v (by definition)
@preetychouhan37752 жыл бұрын
Thank you so much sir for the quidance
@megha756411 жыл бұрын
in isothermal p1v1=p2v2 ?
@varunshah647610 жыл бұрын
sir is not integration of 1/(v^gamma) ln (v^gamma) in calculating work done by adiabatic process??
@jojoTyme9 жыл бұрын
+varun shah gamma is constant value
@varunshah64769 жыл бұрын
Yes buddy got it.
@4710-h9o9 жыл бұрын
sir may you explain me use mayeris process in real life
@nagendrababu47346 жыл бұрын
Why gamma is mentioned in adiabatic process
@taniyasharma57977 жыл бұрын
Sir, i face problems in solving numericals. could you please tell me how can I help solving them?
@peterpace33795 жыл бұрын
Practice practice practice. First study concepts thouroughly, then start with easy problems, then gradually progress towards difficult numericals.
@briansam70529 жыл бұрын
sir here in adiabatic process u r saving pv^Y(GAMA)=CONSTANT AND U R WRITING pv^lamda=constant
@snehakumari9209 жыл бұрын
nice video......
@deo137410 жыл бұрын
a big thanx 4 u sir . you are really great
@piyushrathod33605 жыл бұрын
Thank you very much sir !
@mantravelish6 жыл бұрын
sir mic ka use kijiye plz
@digambersingh75749 жыл бұрын
Sir... In last.. U said that work is done in isochoric process how is it possible if volume is constant
@digambersingh75749 жыл бұрын
OK thanks I got it
@shaileshgautam84919 жыл бұрын
sir please give the answer of that question which you asked in this video at last
@kanhaiyabhardwaj414212 жыл бұрын
thx for uploading all the class 11 th video
@riotempesto80006 жыл бұрын
please give the reversible and irreversible process defination
@moazzammalek9 жыл бұрын
sir aapne is video ke last me question puchha tha plz give answer i want to know
@megha756411 жыл бұрын
who is doing work and where in case of tyre releasing air due to a hole in it? how is it isothermal ?
@shaikhzoya200210 жыл бұрын
sir if we apply first law of thermodynamics in work done in isothermal process where change in internal energy is zero in this case Q=W this is contradiction of thermodynamics second law as this law does not allow tong convert all energy into work.sir i think i am wrong in thinking that in isothermal process change in internal energy is zero only temperature remains constant if i am right then please explain why change in internal energy is not zero provided temperature is constant.
@mahendrasinghdhoni427111 жыл бұрын
yup! provided no. of moles remain constant.....
@AnshumanChaudhary-pb7by7 жыл бұрын
Ye gamma ko lambda kyo bana diya??
@tahiyatanveer2257 жыл бұрын
your videos are fab
@DineshKumar-kp3yv8 жыл бұрын
well done!!
@harshitagaur63949 жыл бұрын
sir where is the heat gone in the adiabatic process.. and sir why we are doing a process adiabatically or what is the practical use of it.. please sir reply as soon as possible
@harshaljain92978 жыл бұрын
Harshita Gaur heat is not gone anywhere since the wall is adiabatic I think u may b having a question when we down the pistol pressure increases hence temp increase yes it true the heat is stored in form on temp this energy can also be used to do work on pistol
@dobby44456 жыл бұрын
@@harshaljain9297 yup
@lakshyaameta975911 жыл бұрын
Awesom
@prachiwadhwa69047 жыл бұрын
Sir please aap pv diagram b btate or usme clock and anticlock wise jrur btate sir request hai pls
@subuhisharma53107 жыл бұрын
Sir thanks a lot you are amazing
@chanderveersingh763011 жыл бұрын
thank you very much sir...
@vivekkashyap79827 жыл бұрын
Thanks sir m apke vedio dakh 12th m pas hua apka bhot bhot dhanywad
@sanmitasahu31856 жыл бұрын
Thank u so much sir
@akramkhan-is6nl9 жыл бұрын
why are in efficieny multiply by 100 but in c.o.p not multiply by 100 c.o.p is also efficieny
@mohitrj34177 жыл бұрын
Sir thank you
@rakhidhiman90108 жыл бұрын
its really help me
@Letfeel7 жыл бұрын
it is useful us.
@amitchoudhary633211 жыл бұрын
unique
@sujanbhattarai36987 жыл бұрын
thanks from Nepal
@shivanigupta23528 жыл бұрын
u r the best sir .......
@abhishektyagi58868 жыл бұрын
tnxxx..
@arabazsoudagar45667 жыл бұрын
Hi..sir..ur videos are fantastic.. BT the classes students doesnot allow to listen carefully... Plzz put ur videos without students in classes(separately) ...
@shubhambhoir675311 жыл бұрын
Thank you, Sir
@ikrasbhai26547 жыл бұрын
amazing sir
@indian58777 жыл бұрын
Thanks sir .
@debasishghosh72977 жыл бұрын
thank u Sir. ...u r God. .
@adityapathak57210 жыл бұрын
Sir plz send class 12th notes
@jaharlaltewari144110 жыл бұрын
THANK YOU SIR
@sameermalhotra162312 жыл бұрын
Ooosammm............
@sharaddixit60497 жыл бұрын
Sir Apne last question ka answer dedijiye......
@vishnurajput90177 жыл бұрын
Sir dq=dw he
@davidemmanuel721310 жыл бұрын
sir please send me class 11 notes
@aloksaxena24507 жыл бұрын
so nice
@khushichawla30429 жыл бұрын
Thank you sor
@davidemmanuel721310 жыл бұрын
Sir, I am one of one of your thousands of followers....I supplicate you to send class 11 notes...I am an IIT lecturer from Hyderabad..
@davidemmanuel721310 жыл бұрын
sir, as I am very much fond of your teaching please send notes for class11..my id emmanueldavid74@gmail.com
@viswasaibhushankonduru6849 жыл бұрын
+david emmanuel iam from odf hyderabad ,yeddumailaram hiii sir
@smartyapcreationcreation39517 жыл бұрын
Viswa Kamal sir
@smartyapcreationcreation39517 жыл бұрын
sir mai aap ka seb video dekhta hu your all videos are really good your language are good sir please solutions chapter ka video benaye please please please please
@amlendratripathi7758 жыл бұрын
how. you. have. written. T1 -T2. how. Sir. at. last. should be. T2-T1
@nagendrababu47346 жыл бұрын
Numerator and denominator are multiplied by -
@prem0thanagala10 жыл бұрын
1000 likes...thank u sir
@khushichawla30429 жыл бұрын
I mean that sir
@Albert-iz5hg7 жыл бұрын
Nice sir
@dido300full12 жыл бұрын
Thanx sir for the upload.....
@JithuNair9510 жыл бұрын
thanks a lot sir really helpful video
@smartyapcreationcreation39517 жыл бұрын
sir l study your all videos your language is good sir please send me the full chapter video of capacitor please please sir please
@randommedico47957 жыл бұрын
Nitya Pandey improve your English dude
@adityapathak57210 жыл бұрын
Hws sir....
@moazzammalek9 жыл бұрын
iska answer videos no. 93 me he mujhr milgaya dont waste time sir
@ayushsaini64898 жыл бұрын
sir your videos are too long please make them short
@megha756411 жыл бұрын
mahendra singh Dhoni ... how come u know all this stufff?! heeheehehh
@moazzammalek9 жыл бұрын
??
@4710-h9o9 жыл бұрын
hiii sir
@megha756411 жыл бұрын
mahendra singh dhoni how come u know this stuff! eheheheehh