Calorimetry

Подписаться 1,4 млн

Просмотров 172 тыс.

50% 1

051 - Calorimetry
In this video Paul Andersen describes the history of calorimetry and explains how it can be used to measure energy changes in a system. The specific heat of water is well established and so as a system releases or absorbs energy from a surrounding water bath it can be measured. Calorimeters can be used to measure the specific heat capacity of a substance as well as the enthalpy of fusion, vaporization, and reaction.
Do you speak another language? Help me translate my videos:
www.bozemanscience.com/transla...
Music Attribution
Title: String Theory
Artist: Herman Jolly
sunsetvalley.bandcamp.com/trac...
All of the images are licensed under creative commons and public domain licensing:
Chris, Nettrom based on source by. English: SVG Version of Wikistress Thermometer on Level 1 with No Text (content Is Coloured Green, Low Value)., July 27, 2011. File:WikiStress 1 de.svg. commons.wikimedia.org/wiki/Fil....
---. English: SVG Version of Wikistress Thermometer on Level 2 with No Text (content Is Coloured Yellow, Medium Value)., July 27, 2011. File:WikiStress 2 de.svg. commons.wikimedia.org/wiki/Fil....
---. English: SVG Version of Wikistress Thermometer on Level 4 with No Text (content Is Coloured Red and Is a Boiling Point)., July 27, 2011. File:WikiStress 4 de.svg. commons.wikimedia.org/wiki/Fil....
David, Jacques-Louis. English: Antoine Lavoisier, May 19, 2005. portrait.kaar.at/Naturwissensc.... commons.wikimedia.org/wiki/Fil....
Deutsch: Eine Kerze. Gezeichnet Auf Papier Mit Einem Filzstift, Gescannt, Danach Aufbereitet Mit GIMP., 2003. originally uploaded by de:Benutzer:Drzoom. commons.wikimedia.org/wiki/Fil....
"File:Bombenkalorimeter Mit Bombe.jpg." Wikipedia, the Free Encyclopedia. Accessed December 2, 2013. en.wikipedia.org/wiki/File:Bom....
Hall, Daniel. My Friend's Two Guinea Pigs, Pablo and Darcy, July 30, 2011. Flickr: Guinea Pigs. commons.wikimedia.org/wiki/Fil....
Li-on. English: Calorimeter, October 7, 2010. Own work. commons.wikimedia.org/wiki/Fil....
User:Mattes. English: Ice Cubes for Beverages - Hollow Cylinders, Typically Used in Thailand., March 4, 2009. Own work. commons.wikimedia.org/wiki/Fil....
Zajączkowski, Wersję rastrową wykonał użytkownik polskiego projektu wikipedii: Polimerek, Zwektoryzował: Krzysztof. Zlewki Laboratoryjne, [object HTMLTableCellElement]. Wersja rastrowa: pl.wikipedia.org/wiki/Plik:Zle.... commons.wikimedia.org/wiki/Fil....

Опубликовано:

24 июл 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 54

@ntana4589 6 лет назад

Ahhhh!!! We're lucky that the Internet and people like you exist

@samanthaschuessler8966 4 месяца назад

So good! Explain the concept and the math/equations! Thank you!

@samhill6444 4 года назад

Nobody: Cardi B: 4:07

@vincev4660 3 года назад

LMAO

@patrickstar561 6 лет назад

LETS GO GET HYPED ITS MR ANDERSON

@kerandahull9830 9 лет назад

Very helpful for my chemistry exam tomorrow!

@marijngoes6580 10 лет назад

One slight point of attention. even though of course temperature differences on a celsius and kelvin scale are the same, you did not make that specific when you filled in the equation on both sides. (so now you see C on one side and K on the other, which of course only works for the equation which contains delta T

@MimiTachiwkawa 8 лет назад

For the equation you derive from q=mDTc, doesn't q represent heat in joules and c specific heat capacity? As you show, the rearrangement would be c=q/(m)(DT), but where c is finding the specific heat capacity, and q is the heat in joules. Both ways to solve the math are right, I think the variables are just mislabeled or misleading in this example, or maybe it's just the way I learned from my textbook that has changed since 2013.Any ideas?

@parnachakrabortty8854 4 года назад

Thank you so much for explaining this concept so clearly. My daughter has grasped this concept in a better way because of the specificity with which you have explained this topic. Students should refer to such videos.

@jeanne7552 3 года назад

your videos really help...thank you

@joshuagordon9143 7 лет назад

Thank you! Will help with my Chem quiz tomorrow ! :)

@narekgermirlian1994 2 года назад

How did it go

@md.morshedurrahman5940 6 лет назад

Excellent explanation..thank you

@user-fx3dj1tg1h 7 лет назад

yes that was helpful and subscribe why can't some teachers explain things that simply !

@Klaus-Schwab_Dictator Год назад

How did you measure Specific Heat Capacity of the water ?

@anikfaisal 3 года назад

what if I need to measure the specific heat capacity instead of the heat transferred to the liquid

@lesleyklesel4592 10 лет назад

Thank you so much

@spencerdelauro61 2 года назад

Every time I watch a science video I want to drop out a little bit more.

@maggiedols6161 9 лет назад

I need to borrow your brain for my heat test tomorrow k?

@im.rihito 4 года назад

How was the test?

@greyhagman8960 4 года назад

okay

@mprub4 7 лет назад

unless the specific heat of water uses degrees celsius, don't you need to convert the temperature change to kelvin to make the units match?

@ethangrubelich1305 7 лет назад

The units were supposed to be 4.184 J/g × °C.

@ElijahStormblessed 4 года назад

Celsius and Kelvin perhaps don't equal each other, but the *change* in Celsius and the *change* in Kelvin do.

@ClumpypooCP 7 лет назад

I'm learning this in my physics class for some reason

@diomeraldreynoso297 2 года назад

I think 3.34×10^5 J is the correct answer because he forgot to convert the C to K

@garylarry7862 9 лет назад

i took chem and failed it..now it makes sense!

@user-zz3tt7xq9s 4 года назад

Only such a system gives an error in measurements at least 2.5 times. See the Principle of Le Chatelier - Brown (1884)

@GBY13 10 лет назад

looks like we have to keep the water inside the calorimetry clean all the time..

@whatthehell359 8 лет назад

BRILLIANT!!!!!!!!

@monal4525 5 лет назад

2:19

@kingsepter0015 3 года назад

my regret for taking chem is setting in

@minlep6589 6 лет назад

Ap chem Squad :)))

@drewstroud8894 5 лет назад

for some reason i still dont understand

@milkywayandbeyond 8 лет назад

c for water is 4.18J/g*C (not K). Helpful video besides that. (2:54)

@ashleyvalentino1945 8 лет назад

+Milk Man Actually the units are interchangeable since there is a 1:1 ratio between the two units, i.e., a change in 1 degree Celsius is equivalent to a change in 1 Kelvin. So, c = 4.18 J/g*C OR 4.18 J/g*K

@milkywayandbeyond 8 лет назад

Ashley Roman I forgot about that. Thanks a lot!

@Qopa 8 лет назад

+Milk Man 4.184 J/g*c(K for old used)

@micnasr 3 года назад

hopefully I survive school

@Kennedy-yv8id 3 года назад

Same 😕 mr Anderson comes in clutch tho

@ahmedfallah 10 лет назад

nice

@kapilsaini6646 10 лет назад

Hey u r pretty talented I like ur videos I have been watching many of them .and all wanna say to u is that your videos become borring as the runtime passes no matter how interested you are in the topic .coz of the graphics u use. The simplicity .I mean compare ur videos with ur competitors like veritasuim and other science channels .they have been so good so lately. They have good graphics good animation good way of explaining .so u r perfect ut knowledge is perfect .but for a teacher having a knowledge is not sufficient he must be a entertainer too. He must know the way by which his students understand as well as enjoy the topic .so good luck ...I am kapil siidiqui 17 old .from India. And yeah u doing awesome .my friends are watching u too .