Enthalpy of Formation Reaction & Heat of Combustion, Enthalpy Change Problems Chemistry

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This chemistry video tutorial explains how to calculate the enthalpy change of a reaction using the enthalpy of formations found in the appendix section of your textbook. it also explains how to calculate the heat of combustion or enthalpy of combustion of a substance using the sum of products minus reactants formula. This video contains a few practice problems for you to work on.
First Law of Thermodynamics:
• First Law of Thermodyn...
Thermochemistry Equations:
• Thermochemistry Equati...
Internal Energy, Heat, and Work:
• Internal Energy, Heat,...
Thermochemical Equations:
• Thermochemical Equations
Specific Vs Molar Heat Capacity:
• What Is The Difference...
________________________________
Basic Calorimetry Problems:
• How To Solve Basic Cal...
Final Temperature Calorimetry Problems:
• Final Temperature Calo...
Latent Heat of Fusion & Vaporization:
• Latent Heat of Fusion ...
Coffee Cup Calorimeter:
• Coffee Cup Calorimeter...
More Calorimeter Problems:
• Bomb Calorimeter vs Co...
__________________________________
Specific Heat Capacity Problems:
• Specific Heat Capacity...
Hess Law Problems:
• Hess's Law Problems & ...
More Hess Law Problems:
• Hess Law Chemistry Pro...
Enthalpy of Formation & Heat Combustion:
• Enthalpy of Formation ...
Enthalpy Practice Problems:
• Enthalpy Change of Rea...
__________________________________
Speed of Light, Frequency, & Wavelength:
• Speed of Light, Freque...
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections

Опубликовано:

22 сен 2017

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Комментарии : 242

@TheOrganicChemistryTutor 6 месяцев назад

Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections

@aishahasan686 3 года назад

This man has been carrying my grades from high school into college lolol

@alihoussa2238 3 года назад

i can relate veeery much

@SpicePlayz 3 года назад

SAME

@SpicePlayz 3 года назад

@Cody Bowie dude that guy is a scammer and a bot

@kenmabajen7120 3 года назад

Heck yeah HAHAHAA

@thatfederalguy3562 3 года назад

Did someone say...... *illegal activity* ?

@charlene.w.6124 4 года назад

When you have to learn Chemistry else where because you're under lock down and your teacher won't answer your emails .... btw. you just taught me something is less than 20 mins, which i've been trying to understand for the past 6 days so thanks

@zacharyh5419 4 года назад

I was stuck for hours on combining equations of formation to make a regular equation and the first 10 seconds of your video enlightened me. God bless you

@lilywarrilow8229 3 года назад

Omg same

@grantwiesehan9515 2 года назад

literally same

@jdsign_s 2 года назад

Same here

@hrugved005 Год назад

Bruv if this is the level of physical chem people have in the west every asian would top the test.... its way hard over here!

@triple_gem_shining 8 месяцев назад

@@hrugved005 is it though?

@awaisahmed5489 3 года назад

Best luck all of you for exam tomorrow 🤣🤣

@yegamaipito Год назад

😂😂

@obaidurrehman5270 Год назад

Exam today 😂😂😂

@lovestephaney Год назад

My exam is today too

@ward3122 Год назад

Test tomorrow 😒

@treiz8114 Год назад

Thx I’m totally fcked

@FarrOutt1 Год назад

I stopped listening during Chemistry lessons cause I literally don't understand my teacher's teaching..I just can't wait to come home and listen to your explanation on this topic...Thank you...I'm now the highest scorer in Term 1 ..Just scored (98/100)...Everyone was shocked..I'm just sad that I discovered your channel late...I'm now in my last year of high school...Should have started watching you from Junior level 😢😢....

@basketballmentality5407 5 лет назад

I learn here more than in my class

@robertsterenchak8431 5 лет назад

Thank god this video exists....

@degraj418 4 года назад

Thank him...but then he IS god

@datboi1861 4 года назад

@@degraj418 Woah chill

@hollysu1 5 лет назад

I cannot thank you enough for your videos!!! I went and bought some chemistry books but they hardly give any practice problems! You make it much easier and approach problems from different angles, thank you!!!!

@afaceonthewater 3 года назад

No one teaches this as simply as you do. Thank you

@caitygart 5 лет назад

Thank you so much! All of your videos have been a huge help for my first year of pharmacy school. Cheers!

@AkinOla-bi4ob 10 месяцев назад

It's a great pleasure meeting a wonderful teacher make difficult topic more clearer. I now understand better now. Put it up and God will bless you

@RambunctiousVA 5 лет назад

woah I didn't know a 1/2 coefficient was allowed

@feitan8033 4 года назад

The coefficient of the product has to be 1 unless stated otherwise, so a 1/2 is required for the reactants

@feitan8033 4 года назад

@Megan choo To form water you need one oxygen and 2 hydrogen atoms

@yabombo8145 3 года назад

Do you like black people?

@taelashahid 3 года назад

The reason being is that the atoms of oxygen always exist in pairs; that’s why there’s a subscript of 2 in front of O. All diatomic elements are this way (H2, N2, F2, etc). If diatomic elements are always in pairs, how do we get just one atom of it? You would have to multiply the subscript 2 with something to give you one. The only way you would get one atom is by multiplying it by 1/2. Does this make sense? The 1/2 doesn’t mean half of one atom; it is half of 2 which we know is 1. It is another way of writing one atom of Oxygen in this equation.

@someoneelse361 2 года назад

@@yabombo8145 what does this have to do with anything?

@helpontheway7856 6 лет назад

So glad I waited for you to graduate before beginning this journey. Much love bro. South Florida love

@GSU_Panther_Nation 8 месяцев назад

Thank you. You are a blessing when it comes to straight to the point lectures. In fact, better than Khan Academy, and teaches way better than my chemistry professor. Just have to search the textbook for a certain topic and then search it on RU-vid

@SZombo-wt5ds 4 года назад

Your tutorials have saved me once again, thank you

@rafimonir5112 4 года назад

THIS VIDEO IS GOLD 🥺🥺

@karroten 4 года назад

Another great video. Thank you!

@georgesadler7830 Месяц назад

Professor Organic Chemistry Tutor, thank you for a step by step explanation of How to Calculate the Enthalpy Change of a reaction using Enthalpy of Formations in AP/General Chemistry. The problem selection for this material are excellent. Every problem in this video also reviews the concept of balancing Chemical Equations in Modern Chemistry. This is an error free video/lecture on RU-vid TV with the Organic Chemistry Tutor.

@77eeq Год назад

Thank you so much ur carrying my grades from 9th grade to 11th grade thank youu so much

@degraj418 4 года назад

Thank you for such a great video :)

@lorenzdequina2306 4 года назад

Thanks alot bro, it make's easy to understand thermochem

@vicv5828 3 года назад

Better than my chemistry professor by a mile

@tane1038 3 года назад

Thank you. This is great!

@zettagbayani9227 Год назад

Thankyou so much for the awesome videos!

@saeedmohamed7008 4 года назад

Thank u so much good job keep going.

@namballalakshmanarao3831 5 лет назад

thanku sir.....awesome lecturing

@abrahamande1508 3 года назад

this guy is a gem

@myax4500 3 года назад

Thank youuuu this is so helpful

@Swetha-ii 3 года назад

A PRODUCTIVE VIDEO....KUDOS TO THE TEAM

@oluwakemiadelana7803 4 года назад

Beautiful video. Nice job

@niche5006 5 лет назад

The enthalpy changes are measured kJ instead of kJ/mol since you multiply everything by moles. Love all your videos btw.

@kinghassy334 5 лет назад

Thanks

@nicolasaq523 2 года назад

Organic Chemistry Tutor The GOAT

@amogh_veena 4 года назад

Thanks you soo much brooo made my life easier

@LilJollyJoker 8 месяцев назад

Thank you so much for this!

@karaborose1940 3 года назад

You simply the best

@moatlhodibagayi-vk5gt Год назад

You are the best man🙏king

@janieli 3 года назад

thank you. thank you. god bless you.

@georgia5026 2 года назад

That does it. Imma start building a shrine for this guy.

@titusmwape2938 Год назад

Well explain and easy to understand

@aymanwhite5902 2 года назад

Absolutely Brilliant 👏 👌 Thank you so much 😊

@herminioserguei5540 5 лет назад

You should be my professor!

@laithahssan8253 3 года назад

1:31 you have to put graphite because its the main form of carbon (solid) and thanks alot great video

@Joshy1313 6 лет назад

Thank you.

@minsungkim6792 5 лет назад

Thank you for this! Not many textbooks explain this concept properly.

@tahaprince6978 2 года назад

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@nalunkumalydia7388 2 года назад

@@tahaprince6978 hi

@tokytahmid4894 3 года назад

life saver !

@kuzon2132 Год назад

Learned a lot

@shanuruppi2051 5 лет назад

thanks for this video

@tommywagner6692 Год назад

He's the best

@user-ve8zt4ww7l 3 месяца назад

Thank you very much man you're AMAZING

@bumxrr 2 месяца назад

welcome

@amrithabhat5019 4 года назад

you are the best dude!

@giridharansankar5735 3 года назад

Yato gang?✌️

@Mejustme74 20 дней назад

3:31 for making this more understandable we can say whenever 1mole compound is form then enthalpy of reaction becomes eq to enthalpy of formation and when 2 or 3 etc moles of compounds are form then we have to divide the moles from enthalpy of reaction to get enthalpy of formation.

@user-ui1kx9mt7q Год назад

Great!!

@AdityaDalvi-ok8ys 3 года назад

thankyou so much.........

@niladrichakraborty3795 3 года назад

Good one sir.

@abhishekshyam3427 3 года назад

ohh man you are awesome

@basketballmentality5407 5 лет назад

The goat

@Jessicaah1 4 года назад

Great video, I'm wondering though why you don't use reactants minus products in the combustion reaction of c2h5oh, since it's a combustion reaction that includes oxygen. I've learned that combustion reactions are always exothermic, so in this case it brings a negative sign which means exothermic, so I'm good with that, but HOW do I know when to use products minus reactants or reactants minus products? Do I just switch signs if I get a positive value when I know it's a combustion reaction? Little confused here. Thankful for answers.

@aadarsha1487 4 года назад

ikr shouldve dlne Reactants - Products in that one its the rule isn't it

@sasmitpandey4980 2 года назад

Is there a balanced synthesis equation for ethanol, or does ethanol only form through combustion?

@sasmitpandey4980 2 года назад

Never mind, I found it.

@islamwasel2023 5 лет назад

Please strongly explain to me what is the relationship that connects the heat of combustion with the heat of the formation

@jenm1 3 года назад

You explain things so well. Are you a TA or prof or something?

@zoey0429 2 года назад

Thank you so much sr.You save me from failing the exam.😞

@jiminpark3865 3 года назад

This is so easy.

@ronncarlfaminialan7525 5 лет назад

We have an exam in thermo chemistry today. thank you for making this video. Wish me luck!

@milindbordia 5 лет назад

Ronn Carl Faminialan how’d u go?

@AksamRafiz 5 лет назад

@@milindbordia he probably died

@adycerriteno3230 2 года назад

THANK YOU SO MUCH! CAN you make for heat of combustion please...

@Exotic0011 3 года назад

Helpful,

@qualityff3458 Год назад

how can this piece of flesh can teach that amazing !!

@hussnainshakeel2372 4 года назад

who's studying for finals with me 🥴

@davidgn40 4 года назад

Lmao right here

@andrewhill1570 4 года назад

Right here 🥴

@hussnainshakeel2372 4 года назад

Good luck to both of y’all

@davidgn40 4 года назад

@@hussnainshakeel2372 had mine. This video saved me on the Enthalpy questions haha. Thanks. Hope your finals go/went well too.

@sansamman4619 4 года назад

I am studying for the finals that I will have one year from now xd, this Thermochemistry stuff is one hell of a challenge I am studying on a text book, I also have a few other "note book" things that should help with the text book, I have 50 practice problems, I have like 30 tabs opened, I will watch the mit open course ware lectures on thermochemistry and then I will be done. I don't know why I told you this, but after writing it down I feel a little better :')

@vkrs3315 3 года назад

Thanks

@francesgreen6062 2 года назад

I have an exam tomorrow and I still don’t understand Heat of Combustion 😀 wish me luck before I head to my certain doom!

@royal2566 5 лет назад

this really nice video thanks for it....

@silver9204 Год назад

Ily bro

@lild7me 5 месяцев назад

I wish I could know which grade this lesson is for, bc I am taking it in high school second grade in Saudi Arabia, and thanks man for this video ❤❤

@arrow1123 2 года назад

hes so goated

@aidenwolf3558 3 года назад

will the carbon dioxide and water formation enthalpy always be the same for problems or does it rely on the textbook

@nutritionbyelsa 2 года назад

my goal is to fulfill my purpouse in life to the same degree you have fulfilled yours

@liamnotlast4571 Год назад

Why am I watching this? It's 2 minutes to midnight and I don't even go to school anymore!

@user-jo3ni7qq1m 3 года назад

333K views. 3 years ago Nice ❤️

@koysensei4424 Год назад

How do i know if the product is gas liquid or solid?

@seeyameanie7607 4 года назад

Not sure if this is a dumb question or not but if I have an equation with with no pure element that is in its standard state that equals 0, then how do I find the zero to make my math work? How do I determine what the pure element is if there is none already set up in my equation?

@nevemaltus8275 4 года назад

This guy sounds like Mark Whalberg

@quantumconfusion612 3 года назад

yess thats what i thought too

@nshimyumukizaonesime2525 3 года назад

Do you only put elements on the reactants side?

@minahelarif7698 4 года назад

Best

@chiamakanwazue6237 3 года назад

It’s second period and my test is fifth period, wish me luck 🥴

@morganthium2988 3 года назад

How did your test go?

@hayin2041 2 месяца назад

May I ask how is it possible if we undergo combustion raction while still staying at standard condition (1 atm, 298 K)?

@Joe_Joe1203 Год назад

Around 9:30 I have a similar question where butane is burned to produce CO2 and H2O. My professor insists that the value for liquid water is to be used in the formula instead of the water vapor one. What I don't understand is why does the value of water vapor not apply to this situation. I don't remember cooking on the butane gas stove with liquid water coming out of it. Any explanation that can convince me?

@professionalgamingchannel8926 Год назад

Yeah there is explanation Just don’t think too much

@andyoohhh2061 12 дней назад

Why wouldn't your units "mole" cancel out when solving for the heat of reaction? I think it should.

@fezii9043 3 года назад

What about calculating the enthalpy change of formation if given the enthalpy change of combustion?

@hectorokereke9268 Год назад

Enthalpy change of combustion is enthalpy change of reaction And to solve for that is ∆Hproducts - ∆H reactants you can use algebra and finish up

@fezii9043 Год назад

@@hectorokereke9268 thank you

@khaledragheb6503 6 лет назад

you're a fucking chemistry GOD

@christopherloughran9029 2 года назад

What would happen if Aluminium had a value (hypothetically)? How would you isolate X ?

@rosyskysong8590 4 года назад

Could you explain why dH(rxn) is -1396kJ PER MOL at play time 9:25. I thought dH(rxn) is -1396kJ for 4mol-NH3 and 7mol-O2.

@cam.r.7052 2 года назад

For anyone else who wonders, I believe he made a mistake writing /mol and it should just be kJ. If you follow the units of each number on your head, the moles cancel.

@islamicbrotherhood9574 6 лет назад

Some tough numericals needed#IITJEE ....PLZ.....ON THERMOCHEMISTRY

@sasmitpandey4980 2 года назад

What is the balanced synthesis equation for ethanol?

@sasmitpandey4980 2 года назад

Never mind, I found it.

@claytonliew734 4 года назад

yo the organic chem tutor r u teaching A levels chem?

@Jackadman Год назад

But how to I find enthalpy changes with enthalpy of combustions

@toxicgamer5723 3 года назад

Why is the enthalpy change of the reaction is equal to the enthalpy change of the copustion of 1 mole

@shaisaroussi5324 2 года назад

Question: Enthalpy of formation of H2O is 0 or -286? What do I miss? Thank you!

@noraax 2 года назад

This is probably a bit late but it’s -286 because H2O (L) is not a “standard state”, it’s created from the formation of H2(g) and O2(g). So the H2 and O2 are 0 not the H2O