The First Law of Thermodynamics: Internal Energy, Heat, and Work

Показать описание

In chemistry we talked about the first law of thermodynamics as being the law of conservation of energy, and that's one way of looking at it, but physicists like doing math more than chemists do, so let's talk about the first law in terms of an equation. You like equations by now, don't you? You should!

Check out "Is This Wi-Fi Organic?", my book on disarming pseudoscience!

Рекомендации по теме

Комментарии

Sometimes hearing the same information from a different person helps very much!

myron_jd

Why couldn’t you have been my professor in college? You explain everything perfectly!

cherylbauman

I don't know if I have gotten this all wrong, but isn't the sign convention explained here wrong? 1) Work done by the system- (-w)
2) Work done on the system (+w)
This is what I have learned.
Please correct me if I'm wrong.

Edit- So this tutorial was for physics, not chemistry. Anyways, it's more interesting to discover that we use different sign conventions in physics.

nischalchhetri

يا رجُل ماهذا الشرح الجمييييل ، شرح مُبسط وجميل ♥️♥️♥️♥️👏🏻👏🏻👏🏻

emnfcny

Professor Dave is definitely still saving educational lives years later with these videos

MattMattMat

Great video, one thing you missed that I think is important is if U = q - w or = q + w depending on which subject you're taking. I know that physicists and biomedical engineers use +w.

maelscott

I swear to study thermodynamics eagerly if he's my professor.Deserves a lot of subscribers and likes.

Rahul-hpie

i want all Teachers as you. You explain a lot of things in few minutes.Thank you..

Sulfuricacid__

As always, clear, and most importantly, concise. No wasted words or time. Well done, Professor Dave

TomBrooklyn

Me watching this 5 min shit after studying this for 13 hours straight in a complex way and dreaming about this video to be enough for my exam ....

heliumteam

Best video for understanding the concept

vaishnavipatil

Awesome visual examples and simplified to absorb the information being released, making understanding and keeping it in so much easier. Thank you, Prof. Dave!

OIFandOEF

I think I'm dropping thermodynamics

Unknown_Ooh

Exhaust stroke & also intake stroke are adiabatic processes because no heat is added or removed in the processes and internal energy reduces in exhaust stroke and internal energy is added in the suction stroke. Accordingly work is done by the system reducing the internal energy in the exhaust process and accordingly work is done on the system to shoot up the internal energy in the suction process.

qjrvmob

Professor Dave helping me cram for the physics GRE, what a hero

tommysheehan

We need more professors like you in India ...

VishnooSpotlights

You're making me fall for thermodynamics.

Thank you so much

derrickdanso

***My chemistry teacher has told me +w=work done on system, -w=work done by system

rachellicari

Amazing video! But please specify that this is from physics' point of view. according to chemistry the signs are different. This kind of induces confusion. THANK YOU!

vsisters

why was (150J) taken positive ??? In the Last Example.?

shahxad

The First Law of Thermodynamics: Internal Energy, Heat, and Work

The First Law of Thermodynamics: Internal Energy, Heat, and Work

First Law of Thermodynamics, Basic Introduction - Internal Energy, Heat and Work - Chemistry

FIRST LAW OF THERMODYNAMICS | Easy and Short

What is the First Law of Thermodynamics?

First Law of Thermodynamics, Basic Introduction, Physics Problems

First Law of Thermodynamics

Thermodynamics: Crash Course Physics #23

The First & Zeroth Laws of Thermodynamics: Crash Course Engineering #9

Applications of First Law of Thermodynamics - Unit 16 First Law of Thermodynamics

Simplifying the First Law of Thermodynamics | Physics by Parth G

First law of Thermodynamics (Animation)

First Law of Thermodynamics - Concept and Examples

The First Law of Thermodynamics | Thermodynamics | (Solved Examples)

First law of Thermodynamics | Physics

5.1 First Law of Thermodynamics and Enthalpy | General Chemistry

First Law of Thermodynamics [year-1]

First Law of Thermodynamics

Thermodynamics - 2-6 The first law of thermodynamics (conservation of energy)

Thermodynamics - A-level Physics

First law of thermodynamics class 11 | 11th class physics ch 10 | kpk, federal, punjab board

First Law, Second Law, Third Law, Zeroth Law of Thermodynamics

Ch#11 |Lec#6 | First Law of thermodynamics and Applications |Law of conservation of energy #chem11

First law of thermodynamics problem solving | Chemical Processes | MCAT | Khan Academy

The Laws of Thermodynamics, Entropy, and Gibbs Free Energy