Important Numericals in Thermochemistry | Enthalpy of formation & Enthalpy of combustion problems

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  • Опубликовано: 18 дек 2024

Комментарии • 353

  • @vijaysimha6642
    @vijaysimha6642 4 года назад +25

    In last problem, combustion of Benzene is given as 3267 kj of energy is released.So,we have to assume it as -3267 indirectly.See, carefully 🙂

  • @lakshmidevithulasi9726
    @lakshmidevithulasi9726 5 лет назад +86

    I never seen a teacher like you (it means your teaching is excellent)

    • @priyanshuhazra6353
      @priyanshuhazra6353 2 года назад +1

      PW KO BHUL GAYE KYA

    • @Maxton-pw
      @Maxton-pw Год назад +6

      Komali mam is better than pw

    • @ashwing.p1168
      @ashwing.p1168 8 месяцев назад

      ​​@@priyanshuhazra6353😂then why you came here da deii

    • @AnishArya-f9w
      @AnishArya-f9w 2 месяца назад

      ​@@priyanshuhazra6353Pw 😂😂😂

  • @AbhayYadav-qs2gt
    @AbhayYadav-qs2gt 2 года назад +7

    Ma'am I am also a teacher but your teaching style is unique than other ,you are the best teacher in the world,I am very lucky to watch your video.. thank you so much ma,am

  • @yasrabshowkat3392
    @yasrabshowkat3392 4 года назад +5

    MAM....Lots of love from kashmir.you are my inspiration..may God bless you !!!

  • @bettybiju5573
    @bettybiju5573 3 года назад +5

    Mam, no words to say... It was just amazing lecture....may god bless you for ur work for us...luv u ... From KERALA

  • @pratikshajarange9824
    @pratikshajarange9824 4 года назад +2

    Thanks mam mera 2 years mein first time concept clear hua about thermodynamics thanks a lot mam we need teachers like u love u mam

  • @namogh5973
    @namogh5973 5 лет назад +12

    Excellent teaching mam, useful for students preparing for jee

  • @gj3830
    @gj3830 4 года назад +10

    This channel's my confident booster 💪👍

  • @jai-dl1ow
    @jai-dl1ow 4 года назад +1

    Less time , more explanation . No time pass and at last thanks a lot mam.

  • @jitendrabillaiya1392
    @jitendrabillaiya1392 4 года назад +6

    Heat of formation ias for 1 mole product...
    And heat of combustion is for 1 mole reactant ..
    Thank you so much for this ❤️🙏🏻😁

  • @vaishnavi_padidem
    @vaishnavi_padidem 4 года назад +3

    Your classes are very useful to us mam.....

  • @ragisaikiranreddy6927
    @ragisaikiranreddy6927 6 лет назад +8

    Thankyou mam..such a awesome explanation. When this topic taught in my class I had a doubt 🤔 but now it is very clear mam.😄🙏🙏🙏🙏🙏 Mam your way of teaching shows how honest u r to share the knowledge... Mam ur just looking like my sister

    • @KomaliMam
      @KomaliMam  6 лет назад +5

      Thank you so much for your kind words😊.. I'm Happy to listen this. Sure I will help as many students as possible..👍

    • @ragisaikiranreddy6927
      @ragisaikiranreddy6927 6 лет назад +1

      Madam please make video on dry cell & lead accumulator🙏🙏🙏🙏🙏

    • @damodarraovaka4091
      @damodarraovaka4091 6 лет назад

      @@KomaliMam Mam please explain how to remember IUPAC structures Easily For I.P.E 1st year

    • @rajasuguna5420
      @rajasuguna5420 5 лет назад

      Yes mam me too

  • @vyaraiah6969
    @vyaraiah6969 5 лет назад +6

    Thank you so much madam...
    U had completely vanished my fear on physical chemistry madam

    • @aakshisingh1816
      @aakshisingh1816 4 года назад

      Not vanish she comforted my confidence on physical chemistry 🤭

  • @shreyasdasa1220
    @shreyasdasa1220 4 года назад +1

    Mam ur videos are soo much helpfull to me. Very very tnks for videos. By seeing other videos I use to get head ache. After watching ur videos. Easily I can understand everything mam. Tq soo much

  • @saharikasaha1013
    @saharikasaha1013 Месяц назад

    Wonderful teaching mam,u r my inspiration........

  • @HealthWithDrSBT
    @HealthWithDrSBT 2 года назад +2

    thank u soo much ma'am. Ur simple way of teaching helps a lot 🙏

  • @AbhayYadav-qs2gt
    @AbhayYadav-qs2gt 2 года назад +3

    You are the single teacher handled all the topic in chemistry

  • @epicgamer2128
    @epicgamer2128 5 лет назад +5

    i love the way she teaches..

  • @vyshnaviyadav3050
    @vyshnaviyadav3050 3 года назад +1

    Mam after listening to u r class I felt very easy to solve the problems tqq sooo much

  • @vaishnavivanshakrithmath4540
    @vaishnavivanshakrithmath4540 4 года назад +10

    Mam in the topic enthalpy of formation and enthalpy of combustion problem in question no 2 can't we use the formula product-reactant if we use the formula the answer will be 1 ?

  • @sakshigupta5044
    @sakshigupta5044 2 месяца назад

    I was having doubt in my moduoe solving whole doing that C6H6 ka reaction with C4H10 with combustion of H and 2aling with all both mentioned above , so decided to clear that stuffy mistake with my doubt faculty but by luck i so your vedio and my doubts is really clear ❤❤❤❤❤thank u mam 14:19

  • @renusharma3644
    @renusharma3644 Год назад +1

    Lots of love from Himachal Pradesh mam . 😊😊😊 Your explanation is too good . Thank you mam

  • @anokhirani8428
    @anokhirani8428 2 года назад +1

    Mam your explanation is very useful for us mam ,pranam

  • @श्रीस्वामीसमर्थ-ष9श

    u have given so Easy and Useful tricks.. thank you.

  • @Jake_213
    @Jake_213 Месяц назад

    Bht shukriyaa mam ji. After many videos.. finally understood this chapter. No words to explain my thank you....

  • @nishanthnishanth9236
    @nishanthnishanth9236 3 месяца назад +2

    I luvvvvvvvvvvvvv ur teching mam...kindly put tricks video for organic chemistry too mam...😊😊😊❤

  • @avnishkumarmishra2174
    @avnishkumarmishra2174 4 года назад +15

    Bt when we have to find enthalpy of formation, we take enthalpy of product -enthalpy of reaction;but u have taken oppositevely.how?mam, plzzz reply.

    • @ilakkphysics2490
      @ilakkphysics2490 3 года назад +4

      I too have same doubt at 10:30

    • @megha4566
      @megha4566 3 года назад +3

      prev video mam told for enthalphy of combustion reactants - products should be taken..

    • @allenmathewjames1861
      @allenmathewjames1861 3 года назад +3

      in case of bond enthalpy and enthalpy of combustion we need to take reactants - products......but in almost all other cases (eg. entropy ,enthalpy of formation,etc..)its products-reactants itself.

    • @maryamhehe4014
      @maryamhehe4014 3 года назад +1

      @@megha4566 but in numerical we have to find enthalpy of formation not combustion

  • @unknown01140
    @unknown01140 Год назад

    So nice teacher. Lots of love and blessings from pakistan🥰

  • @vidyasree9362
    @vidyasree9362 4 года назад +1

    Maam ur videos are short sweet...... excellent.... useful..🌞🌞🌞🌞🌞🌞

  • @siddhivinayakurban3917
    @siddhivinayakurban3917 4 года назад +1

    Komali Mam= best mentor of chemistry 👍👍👍
    Mam I didn't know what this concept is and how to calculate it but as I am watching urr videos I am getting all the concepts of chemistry 👍💯💯🆙
    Thank u mam 🙏🙏🙏👍👍

  • @sungzix
    @sungzix Год назад

    Thank you so much Ma'am.. Your way of explaining and teaching is so understandable.. 😭👍👍

  • @krishnan407
    @krishnan407 4 года назад

    Your teaching is really very good mam

  • @telugugamer6253
    @telugugamer6253 3 года назад

    Tq mam I feel that theromchemisry is Hard but once when Isee ur vedio I feel it very Easy mam tq so much for ur vedios Mam🙏

  • @gowthamerugadindla9660
    @gowthamerugadindla9660 4 года назад

    mam this is only videos in u tube which am always subscribing and giving like

  • @arjunreddy5745
    @arjunreddy5745 3 года назад +4

    Mam,
    3267.0 kj heat is liberated
    That means we should take as -3267.0

  • @kram389
    @kram389 6 лет назад

    I have little bit confusion in combustion and formation.....u r teaching owsome....mam

  • @glgsireesha3789
    @glgsireesha3789 2 года назад

    No words to express ur teaching methods..thanku soo much mam..excellent teaching, easily understandable👌

  • @khsmaniiyer527
    @khsmaniiyer527 5 лет назад +2

    mam u teach awesome....we are highly blessed to have you in youtube

  • @Smile_with_love
    @Smile_with_love 5 лет назад +2

    I am so weak in this part.. But now I am soo good in this.. Thank you so much

  • @Tejaswini-c3h
    @Tejaswini-c3h 2 месяца назад

    thank you so much komali mam , excellent teaching !!

  • @manishkumawat6955
    @manishkumawat6955 6 лет назад +2

    Thanks Mam to Provide Knowledge for success in life

  • @mohdtajammulkhan2137
    @mohdtajammulkhan2137 5 лет назад +1

    superb explanation mam iam really satisfied after listening to ur lecture thnx a lot mam

  • @vaishnavikapoor4822
    @vaishnavikapoor4822 3 года назад

    Amazing ma'am.... tricks to find the enthalpy of formation......is osm😍😍😚 u r great ma'am 😘

  • @dhruvprashar4146
    @dhruvprashar4146 5 лет назад +3

    Thank you so much mam .. Ur tricks helped a lot 😊😊

  • @-NameeraKhatoon
    @-NameeraKhatoon 4 года назад +1

    awesome explanation and tricks maam

  • @-NameeraKhatoon
    @-NameeraKhatoon 4 года назад +1

    fell in love with ur tricks

  • @nandhanamanoj4148
    @nandhanamanoj4148 3 года назад

    Mam your class is very interesting
    I had got a clear idea about this topic
    Thankyou very much mam👍🏻

  • @snehadas8398
    @snehadas8398 4 года назад

    Mam your tricks help me a lot thanks

  • @keerthiunni3518
    @keerthiunni3518 5 лет назад +4

    Ur classes are extremely super, 😋😇😊 thanks a lot mam for all the classes▬▬▬▬▬▬►🍀 especially for equilibrium chapter.

  • @yashveeryadav9387
    @yashveeryadav9387 4 года назад +1

    Thank you ma'am for vanishing my fear for T.D great explanation

  • @joshnaabigail1591
    @joshnaabigail1591 5 лет назад +9

    You're teaching methods are so simple and easily understandable ma'am 😍
    You have no idea how helpful your videos are ❤️💯💯
    Thank you so much ma'am
    You would be the first teacher I recommend to people finding chemistry tough 😍

  • @KrishnaKumari-xu7ul
    @KrishnaKumari-xu7ul 2 года назад +1

    Mam your way of teaching is superb ...but I just want to recommend one thing that is to clarify the doubt of students in comment section..I know it's may difficult with respect to time ...but still whenever u make another video .u should clarify previous videos students doubt...If this will is not possible..then try to make doubt session separately on the basis of comment section.
    Thanku.

  • @suvetharajagopal7832
    @suvetharajagopal7832 5 лет назад +1

    Tq so much ......... with full filled heart i wish u all successful and happiness in ur life mam.... i am very happy ....i used to struggle to solve that last model problems but now u made it easy....thank you so much mam 😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘😘............

  • @spradeesh6576
    @spradeesh6576 4 года назад

    Superb teaching mam👏

  • @sandeshkarki5346
    @sandeshkarki5346 Год назад +1

    Thank yo so much !!
    For supporting us by making video!
    This video help to understand!!

  • @shreyashiru5550
    @shreyashiru5550 2 года назад

    You are an amazing teacher ❤️❤️✔️

  • @hanincho7951
    @hanincho7951 2 года назад

    It's very helpful, thank you so much

  • @JK-vt6xy
    @JK-vt6xy 4 года назад +1

    A heartful thanks to you Ma'am!!💖💖🙏

  • @pargunankuppusamy1994
    @pargunankuppusamy1994 5 лет назад +3

    Thank you mam .I'm really blessed

  • @shatabdiburman1975
    @shatabdiburman1975 5 лет назад +2

    Thanku so much mam for the video👍👍

  • @abhijitray3713
    @abhijitray3713 3 года назад

    Just keep on teaching , my great teacher

  • @sandeepcreation3219
    @sandeepcreation3219 3 года назад

    Maam u r super duper mind-blowing teacher 🤩🤩🤩🤩🤩😍

  • @AMINAAFSATH007
    @AMINAAFSATH007 2 года назад

    Mam you are a gem❤️❤️❤️❤️❤️

  • @yaseenjanalchemist8026
    @yaseenjanalchemist8026 5 лет назад +1

    Mam...bundle of thanks for detail explanation

  • @RaviKumar-vq6hw
    @RaviKumar-vq6hw 5 лет назад

    What a excellent teaching mam thank u soo much

  • @thamaraigunapriya4702
    @thamaraigunapriya4702 4 года назад

    Mam you are really great and i got the answer

  • @ap_gaming6042
    @ap_gaming6042 3 года назад

    Mam u r teaching is awesome ,I am ur new subscriber💞💞💞 lots of love for ur teaching

  • @dineshjayaprakash9569
    @dineshjayaprakash9569 4 года назад

    Superb mam hatts off to u💞

  • @workaholic3786
    @workaholic3786 4 года назад +1

    mind blowing mam, great explanation

  • @aswinniha490
    @aswinniha490 4 года назад

    Thank.. u..mam..fabulous teaching🥰🥰

  • @sudheersai4277
    @sudheersai4277 5 лет назад +4

    Tnxxx for spending ur valuable time for us🙏🙏🙏🙏🙏🙏🙏awesome explanation mam👌👌👌👌💕💕💕

  • @pradipyadav3943
    @pradipyadav3943 3 года назад

    Thanks you mam you are great . your ways are amazing 🙏🙏

  • @jagdishsad7617
    @jagdishsad7617 3 года назад +1

    9:20 11:51
    फटाफट😁...hindi suno mam k muh se❤️

  • @UNIMOSJB
    @UNIMOSJB 3 года назад

    Thankyou so much mam for helping us .. first i was really afraid of chemistry but mam you made me fall for this subject ..thankyou so much mam☺️

  • @khajavazeerhusain2421
    @khajavazeerhusain2421 4 года назад +6

    But mam for the last qus they are asking enthalpy of formation so we have to take product - reactant then the equation - X1-(6X2 + 3X3)
    ....correct me if I'm wrong 🙇

    • @husnaeliyas935
      @husnaeliyas935 4 года назад +3

      sss you are crct

    • @ayyagariradha4749
      @ayyagariradha4749 2 года назад

      That is when enthalpy of (formation of products) and (reactants) are given and you are to find the enthalpy of formation for the (reaction) but in the problem you are given with enthalpy of combustion of each reactant and product so you need to take reactant-products

  • @alkajha6954
    @alkajha6954 3 года назад +1

    Ma'am when you use some hindi words .... thats makes smile in my face . FAtAFat 💙

    • @sbvforworld4290
      @sbvforworld4290 3 года назад +1

      Maam is good teacher she used a trick to verify answer which I observed that is she gave fullstop to correct option of each questions 😎😎😎
      Very good teaching tho

  • @poojashree6859
    @poojashree6859 5 лет назад

    Mam u are great 👍👍👍👍👍👍👍👍thanks a lot

  • @JomolGeorge_
    @JomolGeorge_ 4 года назад

    you now becomes an angel for me

  • @s.mgammer1035
    @s.mgammer1035 3 года назад

    Chemistry best teacher in u tube

  • @sur_vi_vor6742
    @sur_vi_vor6742 4 года назад +1

    Superb ,superb and superb

  • @manishkumawat6955
    @manishkumawat6955 6 лет назад +2

    Keep always On.Thanks again.

  • @instashopper5601
    @instashopper5601 4 года назад

    It's really helpfull ...thank you soo much😍😍😍

  • @nahla9547
    @nahla9547 3 года назад

    👍👍👍👍it's really good trick

  • @Fanaman389
    @Fanaman389 5 лет назад

    Thnkz sooooo much from my inner core of heart.....superb

  • @ygautam5460
    @ygautam5460 4 года назад

    wow it was so simple to understand 😃

  • @navyaleemashaji4305
    @navyaleemashaji4305 4 года назад +1

    Thank you Ma'am.

  • @sanamadhu8267
    @sanamadhu8267 4 года назад

    madam really it is very helpful to me thk you madam

  • @prishamishra6509
    @prishamishra6509 Год назад

    Maam in 2nd ques 3:56 ...shouldn't we take 1 mole of S2 coz heat of combustion is given, which is defined for 1 mole ? i.e. 1S2 --> 8 SO3 ? If not then why not?

  • @deepakannan7334
    @deepakannan7334 10 месяцев назад

    Nice teaching mam❤

  • @rongalaramuthy956
    @rongalaramuthy956 4 года назад

    Thanks a lot mam, u made my day ossum

  • @srividhya8954
    @srividhya8954 10 месяцев назад

    Another life savior?? God bless!@!!

  • @brajrajmishra8675
    @brajrajmishra8675 3 года назад +1

    I think In the last qus value of X 1 should be -3267 kj, because only then it will become +3267 and 3267-3218.49=48.51

    • @abhimanyusaini430
      @abhimanyusaini430 2 года назад

      Yes ,as in combustion heat releases that's why x1 is negative

  • @kishorseemalamudi5352
    @kishorseemalamudi5352 4 года назад

    Best teacher...😘😘😘😘

  • @practicegaming6271
    @practicegaming6271 5 лет назад

    Lots of love for u ma'am.. 😇😇💝💝💝💖💖💕💕😘😘

  • @balasubramaniansellaiah4877
    @balasubramaniansellaiah4877 3 года назад

    Thumbs up !!! Thanks a lot mam

  • @ktej7709
    @ktej7709 4 года назад

    Excellent explaination mam

  • @shaik7
    @shaik7 5 лет назад +3

    yes mam, we love your videos,
    we gonna make solutions PHATA -PHATT

  • @priyanshithakur6743
    @priyanshithakur6743 5 лет назад +15

    #Mam....thnku so mch..😍😍
    Really u are doing great job..💕💕
    And ur tricks really helping us alot ..
    Keep doing mam 😘😘

  • @ayurjnanavlogs1846
    @ayurjnanavlogs1846 5 лет назад

    Thank you so much. I totally understand.

  • @keerthireddy6213
    @keerthireddy6213 5 лет назад +2

    Mam H formation is products - reactants in last sum