Calorimetry: Crash Course Chemistry #19

Today's episode dives into the HOW of enthalpy. How we calculate it, and how we determine it experimentally...even if our determinations here at Crash Course Chemistry are somewhat shoddy.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!

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Table of Contents
Hess' Law 2:30
Calorimeter 3:12
Calorimetry 3:07
Specific Heat Capacity 5:08
Calorimetry Sources of Error 10:21

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[crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! 

[dennischiu]

Hank is such a good role model when it comes to lab safety.

[SIlVERGOO]

I normally do not leave comments on youtube. However, you guys have helped me in everything from history to chemistry. You make things so clear, concise, and in a way that makes me pay attention. Thank you and keep up the good work.

[atheerkhan]

And once again Crash Course saves my life with a video telling me exactly what to do and how to do it the day before a very important test. Than you Crash Course, thank you.

[HearstMining]

So i have an enthalpy quiz tomorrow..

thought process rn:

thank you hank

thank you hanks mom for making hank

thank you hanks dad for making hank

thanks god for making hanks family so hank will appear

[angelinafiera]

"Never do the thing that I'm doing"
*desperately wants to do the thing*

[gchen]

this has literally been made almost 10 years ago and this is still extremely useful to people like me. Tysm

[natedog]

i love this guy I've looked so long with someone with understanding of chemistry and can explain it throughly not just read the definition out of a book 

[darkoviancody]

Hank I appreciate all your videos, they are really uplifting and encouraging to pursue my interest in chemistry, or biology.
Continue the great work.

[LaBuntyHunter]

For the specific heat capacity portion of the video, I just want to point out that the unit 's' signifies VOLUMETRIC heat capacity (also called volume-specific heat capacity). Volumetric heat capacity is measured per unit volume, whereas specific heat capacity (usually used for solids and denoted by the symbol 'c') is per unit mass.

[borisdorofeev]

Every scientists famous last words, "Never do what I'm doing". Then thousands of other scientists attempt to repeat the experiment.

[rachekla]

chemistry exam tomorrow, I'm actually going to die

[isabelumland]

Our AP Chem teacher encourages us to stir with the thermometer when we use calorimeters. lol we ded

[sukiXrose]

This is wonderful. Sadly, by not fault of your own it came out after my chemistry exam. Yeah, the one where I panicked, messed up all my enthalpy and now have permanently f***ed up my A Levels. But thank you - hopefully you can save some other poor soul :)

[SunlightHugger]

Did he just say "wiggly woggly, bondy wondy"?
This guy is the Doctor, OH MY GOD.

[mtriplett]

For most of the scientific community, specific heat capacity is represented by a lower case c, indicating the heat capacity per gram. A capital C is used for molar heat capacity, with either a P or V subscript for gases, if the calorimetry is done under constant P or constant V conditions.  (BTW, Using c makes the heat equation q=mcAT look a lot like the name of a dreaded medical school entrance test, which is easier to remember than your smAT)

[doughnutspring]

When he references Doctor Who!!!:-) Its all wibbly wobbly bony wondy

[somepeoplearewild]

does this man breathe???? what is his life force?

[akil]

4:58-5:00... DId anyone else notice that the Hg was shown as a mirror image...?

[pranjalirastogi]

you are an amazing teacher!! ur videos clear my concepts so much... I find ur lectures way useful than my chemistry teachers' ... thanks a lot!!!