Clausius Statement and Working of Refrigerators - Unit 17 Second Law of Thermodynamics

[@ghulamqadirhattar2791]

Brilliant sir that was wonderful lectures thankyou so much ❤❤

[@aqeellaeeq9833]

Sir a bundle of thanks to you Mjhy sirf aapki wajah se physics samajh aati hai ❤❤❤❤❤ Allah aapko iska ajar de❤❤❤❤❤

[@aryanfbfyter6700]

Mujhy to aisa lagta hai ke ap foregin sy parh kar aye hai sir itna concept wow

[@TalhasPhysicsAcademy]

😀

[@MuhammadIbrahimShaikh]

جزاک اللہ خیرا ❤

[@TalhasPhysicsAcademy]

Aameen.

[@HashirSufyan-h9j]

Sir thank you sooo much humein itna ache se guide aur explain krny k liyeh you are best sir❤

[@TalhasPhysicsAcademy]

So nice of you.

[@Mr.hayat002]

Sir aap chemistry or bio q nhi padhate wo bhi padhaen ❤❤

[@nabeelahmed8000]

Very helpfull explaination😊

[@TalhasPhysicsAcademy]

Glad it was helpful!

[@NaveedAli-l6e]

Sir what is function of capillary tube in it ?

[@TalhasPhysicsAcademy]

To change high pressure liquid into low pressure liquid. Jab liquid capillary ke small area se bigger area ki taraf jata hai sudden pressure decrease ho jata hai

[@pakistaniactressbeauty]

Your lectures are amazing! + MCQS kindly karwadain.

[@TalhasPhysicsAcademy]

Glad you like them!

[@roshanara9644]

sir thanks for the great explanation

[@TalhasPhysicsAcademy]

You are most welcome

[@Ahsan-qt7cw]

For me it was really boring topic but thank you sir you made it interesting and clears all the doubts 😊 ❤❤

[@TalhasPhysicsAcademy]

So nice of you

[@Junflinxza]

Sir app ki videos quality or achi hogai hain mashallah abb bus app kay 100k hojay maza ajay ga

[@TalhasPhysicsAcademy]

Thanks. InshaAllah

[@Pakistanilofi]

Hello 😊 Sir Assalamualaikum Marshallah se Sir Apney Bohat bohat bohat Hi zyada Acha explain Kiya mashallah Se har Numerical Asani Se samjh mein agya mujhey Sir thank you very much Sir Isi tareekey se Mazeed or bhi Chapters ke Numerical bhi upload Karein Or Sir please please apsey Ek request hai Sir Merey Coaching waley notes Kafi time se NAHI bana rhey To physics ke Numerical To AP Kara rhey hein To sir Jo ch 15 ch16 ch 17 ki theory hai wo abhi Tak Kuch bhi nhi ki to sir please AP KZbin Pe Jo book mein Sarey topics Hein unko notes ke Tor par KZbin pe upload Karein yan phir hamey book mein se hi batadein Ke ye topic yad karo phir ye Or agar question zyada bara ho to ap mark karwey ka Thora short karwadey Sir poorey KZbin pe koi nhi hai Jo ye bhi karwaye bachon ko Sirf numerical yan Topics explain kartey Hein koi ye nhi batata ye yaad karo itna To sir please 🥺🥺 Sir matlab ap samj rhry hongey mein kya kehna chah rha hun jesey school mein Kaam hota hai copies mein to 2nd year mein coaching mein topics to parha detey hein lekin Na koi nishan lagwatey hein na notes hein to please 🥺😊❤

[@TalhasPhysicsAcademy]

Wa Alaikum Assalam InshaAllah I will upload notes with lectures in some time.

[@WindowtoMagicalworld]

Assalam alaikum sir. Ye topic board key paper ke according imp hai kiya .

[@TalhasPhysicsAcademy]

Wa Alaikum Assalam Yes, for short.

[@muneezasamad5081]

But sir you said that no engine can have efficiency of 100% and in this heat is also dissipated at hot reservoir so how can it's efficiency be more than 100%?? Why don't we use same formula of efficiency of heat engine rather than COP

[@TalhasPhysicsAcademy]

Because efficiency se refrigerator ki working describe nahi ho sakti isliye COP use kiya jata hai.

[@WindowtoMagicalworld]

Asslam alaikum sir .refrigerators ki working likha zaroori hai kiya .

[@TalhasPhysicsAcademy]

Wa Alaikum Assalam Yes.

[@ahsanabbasi8429]

I wanna ask something in a refrigerator, the heat is transferred from the hot body to the cold body because the evaporator contains cold fluid and the food or water bottle in the refrigerator is hotter than the fluid in the evaporator. So why we are saying that heat is transferred from a cold body to a hot body? Can you explain me, sir

[@TalhasPhysicsAcademy]

Actually complete system ko consider kiya jata hai to overall refrigerator inside compartment se heat ko absorb krta hai jo colder area hai aur bahar release krta hai jo hotter hai.

[@Sikander-k9p]

Sir agr refrigerator ka door open ho , to room ka temperature rise hoga , ya fall hoga , ya same rahe ga???

[@TalhasPhysicsAcademy]

Ideally same rahega.

[@Sikander-k9p]

@@TalhasPhysicsAcademy bez heat gain =heat lose ?

[@TalhasPhysicsAcademy]

@Sikander-k9p Yes

[@heyiamsyeda]

Great explained

[@TalhasPhysicsAcademy]

Glad you liked it

[@SufiyanMangi]

Thanks sir❤

[@TalhasPhysicsAcademy]

You are welcome.

[@BrohiBaloch-ih2ev]

Sir please make MDCAT physics mcqs

[@Nawal-bq6tf]

assalamualaikum warahmatulla he wabarakatuh air aap ne bola ha k refrigerator k mamlay main efficiency ka formula use nhi sakta or phir aap ne ye bhi bataya ha k is ki efficiency 100 se above hoti ha . to ye kesay pata chala . or sir is main input work hoga or output heat taken from cold body hoga aesay ? or jo heat add hui ha hotter body main wo kia hoga in terms of input and output . sir kindly clear my doubt

[@TalhasPhysicsAcademy]

Isiliye use nahi krte ke woh formula more than 100 answer dega.

[@ShafayIshaq-gb4zv]

Sir reserviors means

[@TalhasPhysicsAcademy]

Hot reservoir means heat source jahan se heat milti hai. Cold reservoir means heat sink jahan heat release ki jati hai.

[@ShafayIshaq-gb4zv]

@@TalhasPhysicsAcademy bohat shukriya sir your lectures helping alot of me

[@hafsamumtaz1604]

Sir you say that this refrigerator is having efficiency more than 100% but sir then you say should get a good refrigerator is having 5to 6 percents I can't understand the logic behind this figures

[@TalhasPhysicsAcademy]

If its efficiency is measured then it will be above 100 se we measure Coefficient of Performance which is 5 to 6.

[@Squadicgamer]

@@TalhasPhysicsAcademy sir if we want to get efficiency in percentage so we'll multiply the cop 5 or 6 to 100 Then we get 500% or 600%???

[@TalhasPhysicsAcademy]

No we we don't multiply COP with 100.

[@irfanali8808]

It means 500% or 600% not 5 or 6 %.

[@aqeellaeeq9833]

Sir aap chemistry bhi parha dein please 😢

[@SufiyanMangi]

Sir plz plz boards say phaly complete book parhaiya ga sir plz ❤❤ and thank you so much for your great efforts sir plz is bar 12 ka new physics complete parhaiya ga

[@TalhasPhysicsAcademy]

I will try my best. InshaAllah complete book upload hogi.

[@SufiyanMangi]

Thanks sir❤❤​@@TalhasPhysicsAcademy

[@SaraKhan-o1s]

Sir apne jo har kisi cheez ka function btaya hai wohi hum as a working likh skte hain??

[@TalhasPhysicsAcademy]

Yes, likh sakte hain.

[@ahsanphysics8210]

mashallah zabardast sir

[@TalhasPhysicsAcademy]

Thanks.

[@BrohiBaloch-ih2ev]

Nice

[@TalhasPhysicsAcademy]

Thanks

[@abdulghafargopang5545]

Good

[@TalhasPhysicsAcademy]

Thanks.

[@muhammadRizwan-vr7qj]

😊

[@AurengzebNaseem]

Sir plz upload next lecture sir plz humari study ka time table hai AGR ap aj video upload na krgy to study time table kharb hojygi plz sir

[@TalhasPhysicsAcademy]

Next lecture kal upload hoga.

[@AurengzebNaseem]

@@TalhasPhysicsAcademy sir thank you so much

[@ahsanphysics8210]

sir aj ka lecture upload karen plz sir

[@TalhasPhysicsAcademy]

Aj ka lecture ready nahi hai.

[@ahsanphysics8210]

@@TalhasPhysicsAcademy sir aj upload hoga

[@TalhasPhysicsAcademy]

No

[@AurengzebNaseem]

Sir aj ka video upload kren plz