6 FIRST LAW OF THERMODYNAMICS | THERMODYNAMICS | IIT ADVANCED | JEE MAIN | CHEMISTRY CLASS 11

[@bosniangamer5509]

once you study with alk sir you get addicted. true story

[@nshreedakumar981]

Very much true

[@llight4619]

6- done... everytime someone likes it...i will rewatch it

[@quasarmaverick]

I liked it bro😂

[@rishiop5912]

Krdiya bhai dekhle vapis😂😂

[@ashishjoshi911]

Bro's on a mission to increase the views

[@lepanga2892]

Waps dekho

[@qwtehegdgg]

Someone pls tell what's the meaning of T that is written with 10^-3 at 5:49 if that means Temperature then what's the sense of writing that there

[@mujhe_kya_mai_toh_tamatar_hu]

I loved when alk sir was confused on that calculation....so cute teacher 😊😇🙃

[@nikola6tesla]

once started watching mohit tyagi sir's and his team's lectures, there is no going back or changing route ❤

[@ZUMANX]

@@nikola6tesla hi

[@arindamkashyap9420]

For those confused about the last question, temperature change hamesha equal aata hai tum koi bi unit use karke change nikalo , delta K = delta °C = delta Farenhite = 20

[@akritisingh5645]

Tysm 🙏

[@lazycork1]

Farenhite me nai aata bro Suppose Pani 0 to 100 degree Celsius Tak garam Kiya toh change 100 aayega in C scale and K scale par in Farenhite scale vo kuch 150 ke aas paas aayega

[@quasarmaverick]

Thank you for telling👍

[@AnasDharar]

Delta F nahiii, Delta K and delta ⁰C only

[@qwtehegdgg]

Someone pls tell what's the meaning of T that is written with 10^-3 at 5:49 if that means Temperature then what's the sense of writing that there

[@ishan__001]

Quite in detail or I say very much in detail these lectures are made kind of for topper batches or I say more of for good students who are there to be trained for iit jee by these kind of teachers hope someone who deserve this level of content gets it. I am thankful I am building up to those students thank you alk sir

[@JaswanthSai_25]

For the last question, the temperature rise is due to the change in the internal energy which is 208.3J. The heat that was supplied was just 100J. But 100J isnt enough to raise the temperature of the gas by 20K (or in degrees both are same), as the energy required to raise temperature is 208.3J, so we compensate by compressing it and doing positive work on the gas (equal to 108.3J) so that its temperature rise is enough. Therefore it is a totally valid question and there is nothing to confuse in it.

But work done is positive it means the liquid is in compression. How giving heat can compress the liquid

[@mamatharaghu4319]

@ even though heat is given, 208.3 j is required and we have 100 J ....so if we do positive work on gas ( meaning v2 - v1 = -ve, work done by sign convention is -ve , along with that delta V is also -ve so work done is positive and compression takes place as volume decreases) i.e 108.3 J ,,,total internal energy will be Q + w = 108.3 + 100. Practically this may not seem right, but the assumption jaswanthsai_jee has made and explanation given seems to be satisfactory

[@csdoit]

@JaswanthSai_JEE_ you have good understanding thanks buddy may god bless you with a good rank👍

[@qwtehegdgg]

Someone pls tell what's the meaning of T that is written with 10^-3 at 5:49 if that means Temperature then what's the sense of writing that there

[@Swethanjali1984]

Dude that's some good explanation

[@kslalita6336]

Sir at 14:43 2500/12 => 208.33 minor calc error nothing more just to inform ...lecture was awsm sir :)

[@tanusrichandra6286]

Actually 107.850 if we use R as 8.314

[@thanks_bruh]

@@tanusrichandra6286 207.85*

[@SHMMPS]

@@thanks_bruh it's should 107.850

[@llight4619]

​@@SHMMPSits 207.85... .. calculation sikho pehle 😂

[@qwtehegdgg]

Someone pls tell what's the meaning of T that is written with 10^-3 at 5:49 if that means Temperature then what's the sense of writing that there

[@yuvraj5968]

Sir, i think in last question change in temperature = 20C But it should be changed in kelvin Correct me if I'm wrong Btw lecture was fantastic

[@thechapter2462]

but temperature change equal hi rahega bhai

[@harshrathee5186]

change in temperature delta T will still be equal to 20

[@NOOBCRASTINATOR69]

@@harshrathee5186 thank you!

[@qwtehegdgg]

Someone pls tell what's the meaning of T that is written with 10^-3 at 5:49 if that means Temperature then what's the sense of writing that there

[@teharsh459]

​@@qwtehegdgg ha vo T h or vo ek eqn h kesi bhi ho skti h phir basic integration ka use kr liya

[@PRIT..014]

Sir second question me compression k wajah se work is done on the system to work done to positive ana chahiye na? Please reply

[@ArRt1719]

2:38 4:18 6:44 8:00 11:12 14:16 15:49

[@namanarora2005]

15:50 sir compression toh mention ni hai na? temperature raise Kiya so uska work hoga maybe

[@jeramiahnolan5787]

6:41 why are the limits from 2 to 1

[@akshatvyas5163]

They are simply the 2 situations ......meaning from position 1 to 2 ..they r not any perticular value but only means the body went from its initial condition to final condition

[@raymak7096]

@@rudrakshsinghal788 no

[@VandanaThakur-uq6jc]

1 to 2 means from one state to another state..

[@abhinabaroy8053]

That is T2 and T1 actually. Final and initial temp.

[@alphaiitd1]

Great explanation

[@harshgupta8936]

6:36 we have to assume that heat given does not do any work

[@Kokoro_watari]

"Conservation Of Energy"

[@harshitgarg9791]

Why in 2nd quest volume is taken negative

[@VladimirPutinIITian]

thanks

[@Rishikajain3238]

Note at 14:14, the answer is 208.3 not 20.8. surprised no one pointed this out in the past 2 years.

[@itzblack1290]

Kyu ki mam apka error hai sayad 🤏 12 se multiply karke ek baar verify karlo 😂

[@chrollo1867]

Did you watch the full video

[@AyushRaj-ez2cw]

Corrected towards the end

[@quasarmaverick]

Watch the complete lecture

[@ManasJaipuria]

sir ne 3 baar bola ki khud karke dekh lena

[@SSEpsilon]

Thank you sir

[@suryanshikr.singhiitaspira9289]

Sir in 11:01 It is compression but you used negative sign

[@kushagrasharma6679]

Ese rat mat bhai V2-V1 hota hai to final volume Kam h initial se bcoz of compression so -ve aega

[@narendra_modishorts]

same question so what is supposed to be correct

[@tanmoypaul6382]

@@kushagrasharma6679 nahi samaj mai aya bhai

[@b-zar8912]

@@tanmoypaul6382 Bhai, mujhe hindi utna nahi aata, fir bhi me koshish karunga. Pehle Volume 200 ml tha.Compression ke baad, 4 ml ghata, tho uska volume ab 196 ml ho gaya. Hamesha change in volume dekhne ke liye hum Final - Initial karte hai. hai na? Tho 196 - 200 = -4 ml. Yeh hi hain delta V.

[@KrishnaSharma-zb1pc]

@@kushagrasharma6679 bhai but sir ne ∆V ka sign bhi liya h question mein tab bhi unhone alag se negative sign kyu liya h?

[@somkaeee]

6 done

[@csdoit]

Sir jab total energy of universe constant hain to hamara universe kabhi khatam nhi hoga na?

[@comptech5240]

universe expand kar raha hain so does that mean universe is doing negative work? Ig energy constant hain kyuki energy universe ke bahar nahi jayegi but then again, it is expanding. Seems like a paradox.

[@theweirdwolf1877]

@@comptech5240 P ext 0 hai to W bhi 0 hoga

[@mryashwanth8574]

Sir how delta q is nc dt it is to calculate internal energy formula how is it use to calculate heat(q)

[@gouravpandey4191]

9:29 sir ne work done -ve kyu lia?

[@EVOLKS.1205]

Work done ke formula mei hi -ve hai.

[@Cyberpunkxvii]

July 25

[@gravity7843]

Completed 6/28

[@yashparmar5722]

Thanks sir

[@harshittiwari5202]

sir aapne temp ko celcius me liya ,kelvin me lenge na

[@marvel-thor8469]

I know ki mei boht jaldi reply dee rha hun but temp. Change Kelvin aur Celsius dono mei same ayega i.e. 20

[@divi65]

​@@marvel-thor8469 bro is faster than light

[@namanarora2005]

Sir ideal gas ke liye Q=nCpdT define ni hota na?

[@AdityaRaj-tp9iz]

No

[@priyanshiupadhyay284]

Why it is so confusing

[@gamersarena6279]

1:43

[@Praxis_by_tanay_pingalkar]

Why on wiki pedia , formula given is du = Q - W. The reason is heat given does not just change internal energy but some goes for work too hence internal energy is less than heat that is Q - W. Mathematically Qf + Uf = Qi + Ui + W => Uf - Ui = dU= Qi - Qf + W = Uf - Ui - W = dQ - W. I dont know why sir wrote that formula. Maybe becuase we have changed the sign convention of work done.

Sign convention is different for chem and physics

[@Naman-m9k]

The formula you wrote is of physics not of chemistry

[@hrishikeshnagre3280]

Sir,is it old or just recorded

[@_jot_singh_7679]

it is old ....sir is just transferring videos from his channel too this channel

[@shyamtripathi8606]

Its old (about a year or so). But that doesn't affect the quality.

[@jayantsingh5016]

old but gold :)

[@asim3351]

@@raghav._.singh. no

[@charanrao52]

@@asim3351 u are wrong it was recorded in lockdown period

[@amitsingh2782]

❤️❤️❤️❤️

[@anuragupadhyay8924]

Last question sayad galat ans hai sir b/c w/d aur ∆U ko jode to 316.6 hai par hamne to 100j hi energy di hai logically to galat lag raha hai

[@CSEjn-zj4ed]

Why only for closed system? if anyone knows in a bit more detail can reply this comment

[@kushagrasharma6679]

Moles constant rehna chahiye na warna for sab kuch faltu me vary karta rahega

[@arindamkashyap9420]

Thermodynamics for open systems is very very complicated, it involves exchange of matter too, and needs deeper concepts, so out of our high school scope

[@ravinasci-cheminfluencer2537]

@@arindamkashyap9420 one question... Does jee advance ask such complicated Question or it is above the lvl of jee adv ..?

[@AyushRaj-ez2cw]

Maybe because in open system mass transfer can occur and we know that intermolecular forces contribute towards potential energy and therefore that might contribute to p.e. Change as well in addition to q and w

[@shivangi335]

@@ravinasci-cheminfluencer2537 since he mentioned out of our high school scope, it simply means above jee advanced level as well. hope that helps :)