Combustion and Flame in One Shot | Chemistry - Class 8th | Umang | Physics Wallah

📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
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▶️Complete CLASS 8TH - SCIENCE ONE SHOT Lectures - • Science - Class 8th NCERT
In this lecture of Umang batch, Sunil sir is going to teach you about Combustion and flame.
Topics covered in this lecture are-
•Combustion
•Types of Combustion
•Fire triangle
•Why candle's flame goes up?
•Zones of candle flames
•Calorific Value
and some interesting questions for practice.
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There are other topics of Science that we are going to cover in upcoming videos for Umang. Stay tuned with Physics Wallah Foundation.
🔴 Details about the batch -
• Recorded Lectures for Class 8th Students.
• PDF Notes of each Lecture will be available on the PW App.
• Weekly Lecture Planner will be uploaded on PW Foundation Community Page.
• Classes will start from 10th January and we will cover the whole syllabus by 10th March.
🎦 Eight Lectures per week will be uploaded.
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#Science #Class8 #Umang

[@ashokkumarsharma3727]

Exam is near
doubt is clear
when sunil sir is here

[@D-ivyansh]

What a line bro

[@Avhilash12]

It's greater than my best line

[@SanjayKumarsharma-oe7hn]

Best teacher🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉🎉❤❤❤❤❤❤❤❤❤❤❤❤❤ l had scored 36 marks out of 40 thank you sir you are the best teacher in the world 🌍🎉🎉🎉🎉🎉🎉🎉🎉🎉

[@heisfinicky]

Who are the backbenchers here??
Edit- Wassup juniors ma to boards de rha hun 🥲

[@Krishnmayi__shiwanii___0]

Me also but I am topper of my school 🏫

[@ASHLEY_SAKI_]

​@@Krishnmayi__shiwanii___0how bro

[@mayankop64]

Me also with my gang CARDINAL 😂😂😂

[@jayyjaat8]

​@@Krishnmayi__shiwanii___0topper kaise bante h bata do ❤

[@Pinki_2378]

Topper

[@user-ji4ko1iv6n]

I MUST SAY, HIS TEACHING METHOD AND EFFORTS ARE HIGHLY APPRECIABLE..!😇 😇

[@user-ji4ko1iv6n]

Really this is true

[@BhumiSingh-cd9vy]

I'm satisfied to you😌🙂

[@rakeshprasad3630]

Who is watching this video in July or August

[@shivgovind4684]

They are providing education better than our school teachers without any fees..... Think about this topic deeply once😮😮
We need these kind of teacher in our school also where we waste our alot of money monthly😢

[@user-ix3nj5be7p]

binod

[@rakeshtiwari5542]

👍

[@jairajputana3399]

And time also

[@shivgovind4684]

@@jairajputana3399 yea, time is priceless. Our time also waste in schools unnecessary classes of 6hours which is only fornt benchers can understand1 hour in traveling and 2-3 hours in their random homework and non sense activities🤦🤦😏

[@SangatiVariya-qj3fl]

Correct

[@sauravchaudhary3236]

FOR ALAKH SIR -- This man is literally born to make history

[@GauravzGupta]

FOR OP GAMER - THIS MAN IS LITERALLY BORN FOR SPAMMING

[@adityaaaa79]

@@GauravzGupta 😂😂

[@khabarpachisi3351]

Pehele padalo beta...

[@beyondtheken7419]

bhai kya hi history bnega

[@mohitagg864]

no it's different physics wallah

[@FactBuster9]

Kon kon 2024 mein dekh raha hai 😂😂😂

[@rituraj7893]

Mai 😂

[@priyankapoul6754]

I am

[@rameshkaithwal8481]

Me

[@dreamgirlyuktichahal0]

Me

[@user-qt3dl6et9o]

Itna hansne ki kya baat hai bhai padh le😅

[@aadvikgupta4759]

Sir when I heard ''jai siya ram'' fire started spreading in my heart🤟🤟
You teach so good🙏🙏

[@rahmatsaba7041]

This teacher is like a diamond

[@xcm-esp-2]

Yesss

[@user-bg7pj5xn8w]

❤

[@SoudaminiDash]

He is like a green tree 🌱🌷🍀💚

[@Sweetyart852]

yes you are right

[@29pratyaksshmishra20]

11:36 Most important thing🕉️

[@user-bw4se7bo8i]

Our teacher taught us this ch in 5 periods and each period is of 40 mins but still couldn’t understand a thing😅

[@AryanSingh75950]

Sir, there was a question, when we burn chandel, it burns yellow but when we burn gas, why does it burn blue, sir?

[@sunitaKumari-zr4hj]

Candle flame is yellow due to the lack of oxygen
More oxygen is equal to blue flame

[@Amanpatel.Bihar1]

😮

[@rishi-xg3ln]

@@sunitaKumari-zr4hj yes in yellow there is incomplete combustion and in blue complete combustion...

[@ArjunKumar-pc7sl]

😮
​@@rishi-xg3ln

[@richasharma542]

Physics wallah : Literally with 0 haters
Alakh sir is an actual legend ✨✨

[@Kabir82633]

BRO SUNIL SIR MADE A LOT OF EFFORTS MAKING THIS VIDEO AND TEACHING US U SHOULD APPRICIATE HIM HE IS A LEGEND BRUHH

[@donboss6728]

i am one

[@user-hv1rr7rq3l]

Bro all other institutes are haters😂

[@jagdishnarayansharma]

Bro then why are you here go to your sir😤

[@laxmikushwaha8135]

'Khatarnak understanding ''. Epic one 😂
My brain during this whole lecture was - "aag laga di aag laga di aag laga di aag laga di"

[@xizento]

anu malik op😂😂

[@mittalpatel8358]

Sir because of you I got 78/80 in science and now I am the topper of the class in science

[@ddddrddd6288]

Pucha kisi ne ?

[@AMPforSure]

@@ddddrddd6288 OOOOOOOOOOOOOOOOHHHHHHHHHHHH BHAI ME NAHI SEHETA

[@SunilKumar-ze2tq]

Mere bhi✨

[@mittalpatel8358]

Teri maa ne mujhe tujko javne ko kaha tha

[@anshika.singh2014]

Me too 😁

[@SantoshSingh-iw4np]

Sir ne puree video mai "Bhaukaal maccha diya" 😂😂

[@meetanjalinayak8690]

Nobody can not teach like digraj sir.

[@debasmitapatra2578]

All teachers are best in their own place.

[@SiddhiVinayakMart]

Digraaj sir is also best but for sst and here Sunil sir is best😊

[@aryabhalla4716]

I must say , his teaching method and efforts are highly appreciable 😇

[@priyankaduggal]

True

[@romeojod2230]

No

[@Starffofficial710]

40:39 , sir, we can also extinguish fire by cement powder is not it sir 🙏

[@SavitriTiwari-jh9vx]

Sir I can't understand anything from my school teacher 😅and i passed my whole year just like time pass😒 but now when I saw your video, i just think that I can also study, learn and understand science as because of my school teacher, I just started hating science🥲but now I will see your all videos and will complete my all syllabus till my final exams😊 and will do full efforts ✍️ to get highest marks in science🫰 in my class.
Thank you so so so much sir ! 💕💕

[@user-ol1vs4os8s]

Ane itna bada kyu likha

[@saritasharma9731]

do good and get better Mark's in finalls

[@PeerSalim-dp8wb]

Aap phr abhii tak apne parents ka fees zaya kr rhe thaii😂😂😂😂 i am jocking Agr aap ko Bura lage tou😅😅

[@PeerSalim-dp8wb]

Agr hum mehnat Kre gai tabii hum aa gai bad sakh te hain

[@utkarshrai5934]

Arrival of sunil sir is directly proportional to level of excitement

[@laxmanakhare8291]

Bhaukal macha denge Sunil sir😄😄😄😄😄

[@romeojod2230]

​@@laxmanakhare8291😂

[@pratyushsuradkar3237]

This man is a bright star of pw

[@pachratanmaurya4799]

Yes you are right bro 👍🤗

[@mydrawingcollection123]

Of course

[@dushyantsivakumar3737]

FAX

[@ultimatechiraggamer184]

Fax

[@usha5054]

0:01 best intro🎉

[@CATO_YT860]

"Jo Aag Bujha Rha Hai Usi Ko Bhuja Dega" Was Epic 😂

[@Express_Gaming7483]

I was searching for you only 😂😂🤣🤣🤣🤣🤣🤣

[@sanjaykumarsharma8729]

Sir your bhokal macha denge dialogue is sooo good😂🎉🎉😂😂😂

[@shahidhussainkhan5796]

me too😂

[@user-ix3nj5be7p]

binod

[@user-ix3nj5be7p]

binod only binod

[@adityagaikwad8593]

amazing teaching sir ❤❤
I understood everything ❤❤❤

[@Adarsh__Rajput868]

Sunil Sir is a legend teacher

[@Swapnilsardar-]

exam is near
nothing is clear
there is no fear
but sunil sir is here
: like plz :}
yo wai mo
*-
*
**************
**
*
*
*

[@preitysardar2470]

Nice

[@NKthesoulofficial]

Example of spontaneous combustion - Na, k, Li and white phosphorus
Legends are reading Nakli

[@coder_yashjain2215]

Thank you sir,Literally i had a tough time dealing with this chapter but after seeing your video it made this chapter feel like a piece of cake.

[@GodzexOfficial]

Haggu

[@lordkatyayan2467]

​@@GodzexOfficialsahi me

[@Aaru_54765]

What a explanation sir👍👌

[@Yaduvanshi00012]

❤❤❤

[@user-xt9fs7xt9p]

U r amazing sir .... 🎉 to teaching way is soo amazing I understanding the whole CH by this video thanku sir now I will use ur video for study......

[@user-le9hb3vm3t]

Amazing lecture ❤ thank u so much sir

[@Akmalhussain-xc9pq]

Yes it was extremely good

[@nonstop4489]

One of the best teacher of chemistry that we study. His way of teaching more enjoy and attractive that I saw

[@mohdnaim4441]

Ya

[@mohdnaim4441]

U are absolutely right

[@GamerBoy99997]

Also all teachers are also great

[@rokogaming1234]

Sir, I don't know will you read my message, but you are literally multitalented and after watching this video my mind only says sunil sir ki jay ho!

[@user-ix3nj5be7p]

binod

[@poisonousgem1142]

har comment me binod
@@user-ix3nj5be7p

[@gopalsinghrajput358]

Binod

[@tarunyoutuber774]

Congratulations bro for 3800 subscribers

[@IshwarPrem.]

He is king 👑 of chemistry no one can beat him in this field in his field he excel my juniors beleive in him he will make you champion 🏆 in chemistry ⚗️🧪

[@pallavparashar1644]

Doubt - is glowing of a bulb also combustion.

[@ajeetprakashsharma2823]

No

[@ajeetprakashsharma2823]

The bulb does not burns it only emits light

[@soukhilalkori6036]

All the teachers of physics wallah are explaining very well👏

[@ravendrasinghrajput5289]

😊😊😊😊😊

[@Vmumpire]

I like this line
Oxygen jalti nhi hai jalati hai😶

[@girishkumarsinha8255]

Most funny scene in this video is 29:35 to 29:50

[@originalbeauty5802]

Amazing teaching skills👍👍👍

[@sudesh9581]

Amazing lecture❤..I just want to pay my gratitude to you sir for making us doubtless..
Tq sir🥰

[@Cricketclimax01]

हँसता हुआ मन और हँसता हुआ चेहरा यही सच्ची संपति है
किसी ने एक संत से पूछा आप बड़े है फिर भी नीचे बैठते है
5,664
बहुत ही खूबसूरत जवाब दिया नीचे बैठने वाला इंसान कभी गिरता नहीं.

[@ishmeetbali1544]

Thank you sir for delivering beautiful lecture.

[@gamers999]

Great job sir

[@Topper-Multitalentedkudi468]

Sir is great padhne ka man bhi na ho to bhi man karega itna acha sir padhate h agar aise school me bhi teachers ho to me ek bhi lecture na drop karu 😍

[@dubeyxpresslogistics6188]

Sir your teaching is very entertaning and like your study method very much❤

[@ankitkumar-3662]

Best ❤

[@annusheoran6073]

Thank you so much sir❤ really you are an amazing teacher 😊

[@lonelykgamer]

You and Hritik Sir are the best

[@naklilulu1465]

yes

[@GAMERCHANDAN78]

3:31 lekin ham to no hi bole

[@user-fy7wb7yv6b]

Jay siya Ram sedha aag pakad leta hai was best sence of watching this video 11:39

[@UN_KNOWN_696]

The man is looking like a god before last night of exam 😂😂

[@BTSarmyAnu]

Hehehe 😁same -same but different 🤣

[@pyaracoco2168]

❤just loved the lecture🫶🏻

[@folkloresupremacy13]

very good video i understood all concepts thank you physics wallah

[@adityabindal3219]

sir but in my book it is written a substance suddenly bursts into flames by absorbig external heat and examples is given oil rags and hays

[@SanjayKumar-dc6is]

Nice explanation❤❤🎉🎉

[@Priya_70177]

I am very thankful to you sir
Thanku so much sir 🤗🤗❤️❤️
Great level of explaination sir 👍😊🤗🤗❤️❤️

[@ayushpandey8305]

Right 👍👍👍

[@Vikas-lr7bk]

👌

[@samiyashaikh2823]

Literally sir you teaching is so good and important 🌼

[@TheMotivatingSaiyan]

Thank you very much Sir .
This Helped me a lot.

[@user-oi5rt4dv7o]

Xxx

[@suraiyaparvin2756]

49:45
Sir I understand the capillary action

[@its_renveer]

hello sir . i wanted online classes for next year 9th grade. are
there any batches available from next year?

[@hemantgupta8518]

Me too

[@sujay6983]

@@hemantgupta8518 me too

[@arpitagrawal6180]

Thankyou so much sir for this amazing class

[@jayandyash6507]

11:36 JAI SIYA RAM
Made me more attentive towards the video
🙏🙏🚩🚩🚩

[@LakshmiKumari-dn6gj]

Yes sir mil gya aapke jaisa explaination physics wallah foundation per 😁😁

[@sushilkumar-dj1lv]

Kon h

[@village_gaming-34]

Kahan hai

[@rahil.113]

All doubts clear 👍🏻☘️

[@chikudhattarwal]

Literally i like very much because in this video all concepts are cleared 😊😊 thank you so much sir😊😊😊😊😊😊😊😊😊

[@chikudhattarwal]

😊😊

[@chikudhattarwal]

Good

[@jogdandbhimrao1915]

Wow

[@divyashukla7741]

Sir your lectures are to enjoying and informative 🙏🙏

[@notworthy11]

sunil sir maza aya 👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

[@kumarvansh6989]

Thank you so much sir you helped me in my internal assessment.
Nice and easy explanation

[@user-ix3nj5be7p]

binod

[@jangbahadurparjapati9547]

Sunil sir good afternoon 😊😊

[@sweetybegum8527]

Amazing teacher I have ever seen . Thanks a lot sir you are amazing teacher of chemistry

[@cricansh5171]

I always appreciate his teaching method

[@Haam9873]

Bhakkkkk

[@mittalpatel8358]

Ya

[@user-oi5rt4dv7o]

Pudina

[@mamabhanjaoficials8544]

Carbon dioxide is tthe best extinguisher of electrical and gasoline fire.

[@user-mx8lf7be4d]

Sir iska notes kaha milega

[@user-uq3ki6fk3w]

𝓼𝓾𝓹𝓹𝓮𝓻 𝓼𝓾𝓹𝓹𝓮𝓻

[@mpvlogs4095]

Thank you Sunil sir for good explanation

[@renukaunhale5805]

Best chemistry sir I have ever seen.

[@alok.kumar.121]

yes

[@pragatidoke6784]

Favorite subject jaisa kuch nhi hota jab teacher accha hota hai tab subject automatically favorite ban jaata hai

[@minkusharma7989]

Amazing class sir

[@gauravpathak6666]

very good explanation sir I really like your style of teaching

[@priyankadhawan5778]

but sir natural gas and LPG are examples of ideal gas

[@tanishkavyas1476]

Amazing ,mind blowing explanation !!

[@mafiadancer824official]

No, you have to say bhokal level explanation

[@riyatailor2088]

Really a very great explaination sir....😊

[@shraddhaverma190]

Superb sir jii, it helped me a lot🙏😊

[@avanisingh2739]

Shayad yes because a chemical process in which substance reacts with oxygen to giving of heat is called combustion.

[@avanisingh2739]

Thanks for giving like to my answer

[@cutiegirls8837]

Wow.... Sunil sir 👏👏👏👍🏻😄

[@bl66ys28]

Better do self study watching pw than going school 💀

[@sanjurana6219]

You will gel TC sooon

[@vandanaverma6534]

​@@sanjurana6219nice one

[@mamtapoonia310]

Sunil sir maja aya👏👏

[@kittukittu4433]

Sodium chloride should be used to extinguish fire due to magnesium metal

[@vaibplays]

sir in book smouldering is not there so should i right it in test

[@akhileshthelegendff]

I read in dps chas a best school but this type of explanation is unbelievable Sunil sir

[@kidclashytkidclashyt7166]

Koi best nhi h bro hum bhi pdh rhe dps Ranchi me

[@user-tb2tc4dq7u]

I am also study in dps rajas.

[@nidhisingh532]

agreed

[@realgamerz2203]

Thank u sir 🙏☺🙌❤

[@user-ow7mr3jg4n]

Sir ji I am thankful to you. So clear my all doubts in a video

[@purplearmy....707]

Sir actually I don't understand the " Fire triangle ' please explain it once again

[@amanpandey5289]

Best type of teaching, I never seen this type of teaching.
Thank you sir for teaching

[@richukumari327]

Wonder ful explanation

[@anikadevi3806]

Physics walah is best platform for expansion of knowledge

[@studyCafe231]

sir , you are the best ,, I bet no one can teach good like you 😘

[@ATHARV_73]

11:37 heart touching part❤