Second Law of Thermodynamics - Heat Energy, Entropy & Spontaneous Processes

This physics video tutorial provides a basic introduction into the second law of thermodynamics. It explains why heat flows from a hot object to a cold object. The second law of thermodynamics states that the change in entropy of a natural process is always a positive. For an ideal reversible process, the entropy change is equal to or greater than zero.
Open Vs Closed Vs Isolated System:
• Open System, Closed Sy...
First Law of Thermodynamics:
• First Law of Thermodyn...
Isobaric Process:
• Isobaric Process Therm...
Isochoric Process:
• Isochoric Process Ther...
Isothermal Process:
• Isothermal process The...
Internal Energy of an Ideal Gas:
• Internal Energy of an ...
_________________________
Adiabatic Process:
• Adiabatic Process - Wo...
PV Diagrams:
• PV Diagrams, How To Ca...
Thermodynamics Review:
• Thermodynamics, PV Dia...
Heat Engines:
• Heat Engines, Thermal ...
Converting Heat Into Electricity:
• Thermodynamics - Conve...
________________________
Carnot Cycle:
• Carnot Cycle & Heat En...
Otto Cycle:
• Otto Cycle of Internal...
Refrigerators and Heat Pumps:
• Refrigerators, Heat Pu...
Entropy:
• Entropy Change For Mel...
Heat Engines and Refrigerators Review:
• Carnot Heat Engines, E...
Physics PDF Worksheets:
www.video-tutor.net/physics-b...

[@TheOrganicChemistryTutor]

Final Exams and Video Playlists: www.video-tutor.net/

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man went crazy with the analogies

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and good thing he did because is had no clue what my professor was talking about

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So that a guy like me can understand

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Force feed and regurgitate :(

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Specifically in the online learning days. You are being fed the science not taught

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Indain Spotted

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It's just the way of the universe my good sir. Nothing to do with you

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The entropy of our education system is increasing but you are trying to control that! Thank you Professor!! Respect from India!!❤️ Whole world is one family!!

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We are one ❤

[@puzzlehead340]

Thanks so much! You explain so clearly. The analogies help me understand the topic better :)

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Oh man, his analogies are the bestt🥲🥲🥲🥲

[@meeseg762]

Such a clear explanation, thank you!

[@saltedcarameldream1352]

I wish my professor explained things this clear!! Thank you.

[@southside.pharmacist5155]

taking a more philisophical approach to this concept here, but it seems like this can be applied to our everyday lives as well! As you notice things start to fall apart around you, you must put in the ENERGY and WORK in order to reverse these processes...very interesting

[@kaiser9518]

😂😂😂😂I ran away from physics because I never understood anything, but I still got it in power engineering and thanks to you I never understood so well in 2 years of prep. even if I don't have a good grade I would still have understood. THANKS😊

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Great examples that you for making this concept clear.

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Your explanations are extremely beautiful

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that's what I call teaching.

[@jonathanstaley3883]

Very well explained. Thank you🙏

[@nickoschatzigeorgiou5431]

You are Gifted. Big respec from Verlin

[@vaishnavisingh4882]

Is this entropy of system plus surrounding or just the entropy of system

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Thanks a lot I really liked your simple examples

[@flat-earther]

hi reemhraez, have you become a flat earther yet?

[@gooddeedsleadto7499]

Is entropy change positive between the evaporator and condenser?

[@ranahisham5850]

Thankyouuuu it helped me

[@harikanabie1730]

Theee explanation is 🔛🔝

[@unluckyme213]

but aren't hot stuff more disorder than cold stuff on the molecular and atomic level? or am i missing something

[@yolo3004]

1:40 you basically gotta put in the work, put in the hours and take whats ours.

[@wavyks2159]

great analogy!

[@tulyamgohain7217]

Thank you very much sir

[@gooddeedsleadto7499]

Can heat flow from dry ice to ice because of the temperature difference between the cold and colder body? Can we run the Sterling engine by using ice as the source of heat and dry ice as the sink?

[@cdmarshall7448]

Heat is the difference between temperature, the change in internal energy isn't heat. LOT makes it perfectly clear Energy, Heat and Temperature although closely related are not the exact same thing. I'm hoping you learned this already in the last 5 years but your never know? >“Heat is defined as the form of energy that is transferred across a boundary by virtue of a temperature difference or temperature gradient. Implied in this definition is the very important fact that a body never contains heat, but that heat is identified as heat only as it crosses the boundary. Thus, heat is a transient phenomenon." -Thermodynamics, G. J. V. Wylen, John Wiley & Sons, 1960

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Please which law determines whether a reaction is spontaneous

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What happened to the pan? Is it spontaneous or not?

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he just summarise my 2 week worth of lesson in 4 minutes

[@nerdy8644]

You never said the entropy of the universe tends to a maximum. How can you forget that?

[@sds3841]

If u have an endothermic reaction (delta H is positive) like H2 + I2 --> 2HI can you say whether the entropy rises or decreases and whether the reaction could be spontaneous?

[@MiKi-ki9fi]

The more concentrated molecule the less entropy. So the equation that you gave has less entropy. And also the reaction is spontaneous because normaly elements binds without energy input. ( as i guess)

[@jeraldlerida5840]

so when you open a door from an airconditioned room, is the cold leaves/moves out or is it the heat comes in?

[@gomerpyle6113]

Heat flows from high to low temp

[@touchme-sama9759]

Heat from outdoor comes in

[@samwweir111]

Which is why we always want our doors closed during the summer so we don't let the room get warm again

[@andrewmcmillan484]

Another example would be how your cooling system works on a car, or the air conditioning system works on your car.

[@alimumtazR]

In this case cold bulk of air leaves the room through convection but here conduction is being discussed so yeah there's that... :)

[@callejondorado]

a) Isn't it similar to say that the system naturally tends to a go to a state of equilibrium?, but that is predictable which is the opposite of saying that entropy=unpredictability.

[@ankitsethi626]

I have the same doubt.. it is natural for a system to reach equilibrium which is in order rather than disorder

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thank you

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What refers to ∆S ??

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Hami creation the change in entropy

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Change in entropy

[@SG-dw8jh]

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[@flat-earther]

haha. BTW SG-, have you become a flat earther yet?

[@cloudwalker2730]

How does the ball flow?

[@tiagolince1262]

magic

[@conditionalbee9603]

Quantum tunneling

[@burtpanzer]

So, what are the odds that a structure during progressive collapse could maintain a level floor by floor failure of each and every structurally sound floor below?

[@flat-earther]

if you use thermate on every structural column and accurately detonate the charges with millisecond synchronization the odds may be very good

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good

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What about life creating life

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[@daraquesca1886]

1:24

[@Inbox_Dylan_Anderson1]

Cool

[@jiemalboy]

If the entropy of the universe is always increasing how did evolution defy the second law of entropy?

[@adamhanzlik8650]

Its important to realise that the law applies to isolated systems. Evolution did not defy the law, as it was only able to achieve what it did with the help of a constant source of energy in the form of our Sun. If you look at our Solar System as a whole, you will see how the 2nd law of thermodynamics applies.

[@flat-earther]

@@adamhanzlik8650 if there is a vacuum between earth and sun how can the sun's heat each rearth since vacuums don't transfer heat?

[@sunbeam9222]

Entropy is not increasing. It only does from human perception

[@goldenladle7251]

So in other words evolution violates the law of entropy. Same with space, it is impossible to have a pressurized system adjacent to a vacuum.

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is it chem thermoD...??

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Yes

[@sauronfupoc7484]

Natural? Systems tending science

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Pump?

[@kimdavidgomez4894]

2:39

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Oh wow

[@utilizator1701]

I like real life examples.

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hi utilizator, have you become a flat earther yet?

[@utilizator1701]

@@flat-earther I do not understand what are you talking about.

[@flat-earther]

@@utilizator1701 utilizator well we were all lied to when we were taught that the earth is a ball flying in a vacuum

[@utilizator1701]

@@flat-eartherTrue. Maybe this is why entropy is not taught/ explained in school like in the video. Its premature to derive life conclusion from it.

[@sauronfupoc7484]

Why a interject an implicated mead for a. Reverse process? In a talk of physics that attempts to exclude the nature? And god

[@sauronfupoc7484]

Astrophysics is order

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What are you even saying?

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Who is this man please? I need his full face video

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Ball natural

[@abdifatahibrahim9063]

Naturally

[@pandzban4533]

II Law of Thermodynamics refers to everything and is absolutely the most important law in physics. It fact it is Newton's Laws of Motion as it is kinetic motion of molecules. The very basic one will be vibration. If we sink into atomic level we can even say to electromagnetic field of electron shells because this the only space of contact. Proven in every possible way. Nevertheless, the modern accepted astrophysics is so wrong with this law. Quantum physics also can't handle this law correctly. But at our human scale this law is so damn horribly true at every instance.

[@sauronfupoc7484]

Greater than zero implies astrophysical and natural science etc. So youve included in a closed state all time and universe

[@stephanengelbrecht7443]

Bro needs to know how a refrigerator works😂 lol pumping air out(a refrigerator is supposed to isolated to keep the products cool) Go leave your fridge open for an hour and c what happens to the cooling panel

[@Ezz4545]

Msa

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Sksks

[@ManoKalathil]

Ugh! Very strained explanation! Good try. Missed the mark

[@climatecraze]

I made this video so even Al Gore could understand ... kzbin.info/www/bejne/j164d4Ckqr-hpJo

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He don't need your opinion sir✨

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@@MiKi-ki9fi He doesn't. Others who may spend 4 minutes of their lives may choose to do something different, no?

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you lowkey sound like justin bieber

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Bro is whispering

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His voice is so irritating

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says the guy called Vjayjay

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you're just jealous

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man this man saves life

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Some focus on the moon others on the finger pointing at the moon 😅

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Ohhhh that’s why back of the fridge is so hot!

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Kairel Edwards I guess

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Don't open the door

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Put bra back