Thermochemistry Equations and Formulas With Practice Problems

This chemistry video tutorial provides a basic introduction into the equations and formulas that you need to solve common Thermochemistry practice problems.

First Law of Thermodynamics:

Thermochemistry Equations:

Internal Energy, Heat, and Work:

Thermochemical Equations:

Specific Vs Molar Heat Capacity:

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Basic Calorimetry Problems:

Final Temperature Calorimetry Problems:

Latent Heat of Fusion & Vaporization:

Coffee Cup Calorimeter:

More Calorimeter Problems:

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Specific Heat Capacity Problems:

Hess Law Problems:

More Hess Law Problems:

Enthalpy of Formation & Heat Combustion:

Enthalpy Practice Problems:

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Speed of Light, Frequency, & Wavelength:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[clomes]

this guy has been saving me in all my classes for the past 4 years.

[georgesadler]

Professor Organic Chemistry Tutor, thank you for a solid introduction to Thermochemistry Equations and Formulas with Practice Problems in AP/General Chemistry. The practice problems/ problem selection is an excellent way to learn the basics in Thermodynamics.. This is an error free video/lecture on YouTube TV with the Organic Chemistry Tutor.

[hafeezbutt]

I have never seen your face. Upload a picture of yourself . We want to see this brilliant guy.

[shanoyacurtis]

This taught be more about thermochemistry than my own chemistry professor. Thank you!

[reb]

Thank you so much!! You’re like the big bro i never had haha

[koukouzee]

it's that time of the year again ..
thanks

[talickmalesu]

We are so grateful for the help you give us. Thank you so much

[LewisKiptum-jimt]

Thanks alot, nice work, , you are contributing to my success

[enyiomaemmanuel]

You are great lectureer thanks for guilding me

[jamesmark]

Can you do a video on how to prove entropy as a state function

[husseinitani]

Nice video but we want you to upload a flip flop (how it works) because you are so good at explaining❤❤ electronic

[tajuoni]

Thank you Mr JG .God bless you richly.Please we want you to show us your face.We want to see you sir.

[amityanuka]

25:19 Wouldn't it be positive cause the question is about the amount of heat released which mean the environment not the system?

[aliciapark]

amazing! appreciate your straightforward lecture. Keep up the good work please!

[nevergiveup]

Under which conditions is the internal energy equals to heat(q) + work(w)?

[godfreymchaddons]

Please your quick response Sir.

When 200. g of a AgNO3
solution mixes with 150. g of NaI
solution, 2.93 g of AgI precipitates, and the temperature of the
solution rises by 1.34oC. Assume 350. g of solution and a
specific heat capacity of 4.184 J/g•oC. Calculate H for the
following:
Ag+(aq) + I-
(aq) → AgI(s)

[samon]

Shouldn't the value that you used for pressure in your work = PV formula be the pressure of the gas on the surrounding and not the pressure of the atmosphere on the gas? Also, I never understand why they say that the pressure is constant??? If there is volume expansion, then the pressure must have increased to allow for the expansion to happen. So my two questions are 1. Why do we consider the ambient pressure (and not the pressure applied by the gas) in our P x V formula and also 2. Why do we assume that P is constant even though there is expansion, and clearly an increase in the applied pressure by the gas in order to have that expansion? CAN SOMEONE PLEASE HELP ME? REALLY CONFUSED

[ibrahimmohammed-teib]

A 500g sample of methanol was combusted in the presence of excess oxygen in a bomb calorimeter containing 400g of water. The temperature of water increased from 24.000c°to 29.765c°. The heat capacity of the calorimeter was 2657j/c°. The specific heat of water is 4.184j/c°. Calculate ∆U for the reaction in kj/mol. Please 🙏 help me with this problem.

[shaimaanageeb]

May I ask u a question please? Our chemistry book in my country write this rule to measure the heat content in chemical reaction is it right or wrong cause they add negative sign to the rule deltH= _q/n

[Trynnagetmydegree__]

Can I borrow your brain for the rest of my undergraduate studies please lol