Bomb Calorimeter | Problems | How to solve | Example

[@TheWeaklyPaper]

So far, this video has been the only video I've found online that even mentions the heat capacity of the calorimeter. I was searching for this equation and info for about 2 hours before I found this. Thank you

[@bladi39901]

everything was fine until i tried to solve the end problem. I wish you went over how you got the answer

[@airmanfair]

Awesome man, thanks for making the video. There is a surprising lack of college level chemistry problems on youtube, the difficulty level of these problems were perfect!

[@gleceriodagamacjr.3404]

Can you solve the last problem sir? Please show solution. Thank you

[@waldo7779]

Since the reaction released energy to the calorimeter. This solution is wrong because the reaction was exothermic and should have been negative. But I really liked the way you explained. Thanks ☺

[@monishaadya3327]

Yaa u r right. In the end we have to take negative signs.... Regards

[@rickyadames7714]

im doing research this summer on calorimetry using food products and this was a very helpful, simple and very much appreciated video with a great problem at the end. Thank you, very much for posting.

[@AK-op4be]

Aaah, thank you! I was so confused on when to use both equations.

[@allhalebrant]

How did you calculate 130.11g/mol?

[@ISpeakZ25]

Thank you a lot mam all the other videos I have watched they dont do this simpler than you

[@XMUXAUX]

Thank you so much for this video, it's wonderful! The Calorimeter always throws me off, although it's quite simple mathematically.. but setting up the problems has proven a huge issue for me, and this helped!

[@BigMacForce]

when i solved ignoring the negative sign on -3227kJ/mol i got 2237J/degree C. when i used the negative a got -9007~ ... did i miss something ? also why am i off on my answers ? i used exact values and didnt round anywhere... can you explain how to solve the answer for the last problem please ?

[@GuitarAnime]

Is it worth to mention that this is the Heat a Constant Volume and the data available is Heat at constant Pressure. So you have to use the relation H = U + PV = U + nRT to convert one into another

[@stansacademy]

+GuitarAnime Yes you may, great suggestion

[@sanctuary9938]

I have a question, How did the 17,405.44J and the 2688.00j turns into KJ when they are both added aren't they just still joules? and if you want it to be in KJ it needed to be divided to 1000 J?

[@felicitaslujan3957]

Can you please solve the last problem please?

[@goatsontvwithaheart]

Thanks Vinstan! You are the best

[@mpaphidzilesotho4203]

thank you so much um in love with this videos. hope this will improve my chemistry grade.

[@faridalidavid6450]

Many many thanks for your presentation.

[@naveesachathamarat5882]

How did you get 2243 J/C if the total heat combustion is -3227. I tried to solve by ignoring the negative sign, I got the same answer. Otherwise, it's totally different. Did I miss something?

[@wannabe771]

You make it sooo easy to understand. Thank you!!

[@omertabalaly5122]

Great video. Greatly appreciated.

[@priyadarshiankur6321]

We get high calorific value or low calorific value of fuel ??

[@sophiaokunrobo2258]

excuse me, the final answer should be negative, since the napthalene was burned and heat was released from the reaction?

[@dailyhackyo]

Thanks for this video as it was very usefull to me during exam to solve some problem

[@stansacademy]

+Rajat yadav Glad it helped you. Thanks for subscribing.

[@meharalisethar]

REALLY VERY HELPFUL IN CALCULATION, BUT IN THIS VIDEO CALORIMETER PRACTICAL AND PERFORMANCE PROBLEMS OCCURED NOT MENTIONED, I HOPE NEXT TIME YOUR GOOD GUIDANCE ON THE PRACTICLE REQUIRED... OVERALL THANKS.

[@dungcajohnlleytonp.7294]

Where did the 130.11 g/mole come from?

[@baleshwarprasadshukla5097]

problem is calories value is not showing in display what have problem

[@cally149]

Great video, thanks so much.

[@vikaspandey6258]

Sir please help me , can you tell me why a bomb calorimeter is not used to find calorific value of gases ?!?. Please reply Asap

[@dipeshsapkota2029]

Very informative n like the starting music

[@zainabsafi2063]

I am wondering if the total energy i mean Q1+Q2 is -49943,74294 J last question? And then i can calculate Q2= -49943,74294-Q1 I will really appreciate it, if You can explain it to me ..Thank you soo much sir

[@jason23_42]

*CELLSHIUS*

[@Johnnyfred99]

Thank you sir

[@bussinessinnovationlabbil7605]

that is very nice.

[@1234Islamic]

can u plz explain the steps to do the question at 13:39. thanks

[@alapatinaveen2790]

thanks

[@monishaadya3327]

Thanks sir

[@janayool1001]

q for water have to be released so (q for water is negative) , right ?

[@stansacademy]

'q' for water when heat is released is -ve. When you calculate delta t use t initial - t final and you will get -ve q or enthalpy or internal energy.

[@shaniellebritton6456]

Thank uuu so much!!!it really helped=)

[@antonionganolisboalisboa5933]

How to solve this problems: Temperature rise hign warning The delta T for the current run (6.8800) has exceeded the warning set point of 0.800

[@makh7019]

thank you so much sir

[@akilakavisinghe7189]

whooo i got it easily! thanks! but i got 2237 as the final answer not 2243 is that just lost of precision?

[@thatniica2005]

Akila Kavisinghe how'd u get that answer?

[@gleceriodagamacjr.3404]

Show solution please

[@Logandary]

Anyone know of a good video for calculating the temperature change of a bomb calorimeter. The problem I'm trying to solve gives the mass, heat capacity, and heat of combustion.

[@XtremeKillah101]

Thank you!

[@nicholasgigliotti3012]

When does enthalpy equal internal energy?

[@Rainn2407]

dH = dU when change in moles = 0 or when temperature is at absolute 0.

[@lucyflower4423]

THANK YOU

[@stansacademy]

You're welcome

[@AishHumairaa]

thanks !!!

[@npyee2985]

Can you explain how you get the 130.11g/mol?

[@stansacademy]

The molar mass should be around 128.18 g/mol that was an error and there is a correction on the video. You need to have flash to see it.

[@austinshields8627]

+Vinstan you need to edit this video to fix the molar mass problem, which makes your final answer incorrect. I'm sure a majority of students are now watching their videos on cellphones now and the error corrections don't show up.

[@stansacademy]

+npyee Add the relative atomic masses of the individual atoms in a molecule. kzbin.info/www/bejne/aZ_PdJx8n86leNE Refer to this video

[@hadifabakhtiar4801]

is the formula to find moles n=m/MM not n=MM/m

[@syandaphatho1269]

Hadifa Bakhtiar yeah I also noticed that mistake but it cool😊😊

[@Baseballismature]

shouldn't the t be uppercase considering lower case t represents time and uppercase T represents temperature

[@stansacademy]

You're Welcome

[@DurayStuffCrafts]

I need a urgent help about bomb calorimeter . I want to ask two question that is, 1- bomb calorimeter alway used in constant volume ? because constant volume calorimetre its second name. means in bomb calorimeter which thing is constant , pressure , volume or both ??? 2- heat is release in combustion process so why don't you use negative sign in it. I mean if it is a mcqs type question in exam and we have a two same answer but just different in sign so which one we choose ????? please answer my questions , my exam will be next on tuesday please help . thanks for explained it .excellent video no doubt ......

[@stansacademy]

+Duray Stuff & Crafts 1. In bomb calorimeters we determine heat change at constant volume, not constant pressure. It is Delta E or Cv as represented in certain books. 2. If you calculate the temperature change as (Initial Temperature - Final Temperature) then Delta T will be -v, this will yield a -ve value for the heat of combustion, then the value will be in agreement with the conventional concept. In the video the temperature is calculated as Final - Initial temperature, which is incorrect that is why you see a positive value. The answer should be and is negative.

[@DurayStuffCrafts]

+Vinstan thank you so much , now I understand this concept .thanks alot . excellent video thank you .

[@helent1299]

thank you so much hun

[@pratikchaudhari5371]

I got the answer of last question as 2246.65

[@michellec.4291]

I got 2246 J/C for the last sample problem is this correct?

[@naisargmodi2587]

Mish Ka V yeah I too got 2246.8 J/°c

[@gleceriodagamacjr.3404]

Can you show us your solution ?

[@UltimateTreepuncher]

tnx bro but do sig figs please (I did them when I did it)

[@tomaslopez3711]

Messed up at the molar mass

[@baybars8948]

Calshium

[@lokprakash3959]

plz solve sample prob

[@luizastorga8066]

lok prakash there was one at the end

[@luizastorga8066]

lok prakash there was one at the end

[@debaa9928]

This is the most recent reply

[@timphilip8780]

Well not anymore c:

[@a.kyadav234]

Hight gcv probalm

[@shwetasinha2482]

Your voice sounds robotic 😆

[@khasansaidov5621]

wtf

[@judhisthirpalatasingh2386]

Why are talking in fake english ascent

[@Madeline-dz6tl]

Thank you!

[@stansacademy]

You're welcome!