- published: 09 May 2017
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In thermodynamics, entropy (usual symbol S) is a measure of the number of specific realizations or microstates that may realize a thermodynamic system in a defined state specified by macroscopic variables. Entropy is commonly understood as a measure of molecular disorder within a macroscopic system. According to the second law of thermodynamics the entropy of an isolated system never decreases. Such a system spontaneously evolves towards thermodynamic equilibrium, the state with maximum entropy. Systems that are not isolated may decrease in entropy, provided they increase the entropy of their environment by at least that same amount. Since entropy is a state function, the change in the entropy of a system is the same for any process that goes from a given initial state to a given final state, whether the process is reversible or irreversible. However, irreversible processes increase the combined entropy of the system and its environment.
The change in entropy (ΔS) of a system was originally defined for a thermodynamically reversible process as
December 27 is the 361st day of the year (362nd in leap years) in the Gregorian calendar. There are four days remaining until the end of the year.
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What is entropy? - Jeff Phillips
What is Entropy?
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{ANIMATION} Kill The Queen ~ State of Entropy
Distrion & Alex Skrindo - Entropy [NCS Release]
Awkward Marina - Entropy (Sim Gretina Remix)
A better description of entropy
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Entropy
View full lesson: http://ed.ted.com/lessons/what-is-entropy-jeff-phillips There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It’s entropy, and it’s notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy. Lesson by Jeff Phillips, animation by Provincia Studio.
Entropy is a very weird and misunderstood quantity. Hopefully, this video can shed some light on the "disorder" we find ourselves in... ________________________________ More videos at: http://www.youtube.com/TheScienceAsylum T-Shirts: http://scienceasylum.spreadshirt.com/ Facebook: http://www.facebook.com/ScienceAsylum Twitter: @nicklucid http://twitter.com/nicklucid Logo designed by: Ben Sharef Stock Photos and Clipart - Wikimedia Commons http://commons.wikimedia.org/wiki/Main_Page - Openclipart http://openclipart.org/ - or I made them myself... ________________________________ COOL LINKS & SOURCES The Mechanical Theory of Heat (by Rudolf Clausius): http://books.google.com/books?id=8LIEAAAAYAAJ&printsec;=frontcover&dq;=editions:PwR_Sbkwa8IC&hl;=en&sa;=X&ei;=h6DgT5WnF46e8gSVvbynDQ&ved;=0CDY...
In statistical thermodynamics, entropy (usual symbol S) is a measure of the number of microscopic configurations Ω that a thermodynamic system can have when in a state as specified by certain macroscopic variables. Specifically, assuming that each of the microscopic configurations is equally probable, the entropy of the system is the natural logarithm of that number of configurations, multiplied by the Boltzmann constant kB (which provides consistency with the original thermodynamic concept of entropy discussed below, and gives entropy the dimension of energy divided by temperature). For example, gas in a container with known volume, pressure, and temperature could have an enormous number of possible configurations of the collection of individual gas molecules. Each instantaneous configur...
Life is chaos and the universe tends toward disorder. But why? If you think about it, there are only a few ways for things to be arranged in an organized manner, but there are nearly infinite other ways for those same things to be arranged. Simple rules of probability dictate that it's much more likely for stuff to be in one of the many disorganized states than in one of the few organized states. This tendency is so unavoidable that it's known as the 2nd Law of Thermodynamics. Obviously, disorder is a pretty big deal in the universe and that makes it a pretty big deal in chemistry - it's such a big deal that scientists have a special name for it: entropy. In chemistry, entropy is the measure of molecular randomness, or disorder. For the next thirteen minutes, Hank hopes you will embrace th...
✯✯Help support my work ✯✯ https://www.patreon.com/swiftkhaos http://www.redbubble.com/people/swiftkhaos One day I won't procrastinate till the last minute because even though I had the storyboard done for the longest time, I literally only had three weeks to do the final animation. Comparing it to last year, there are some things I've improved on, and other things I still need a lot of practice for. My abstract animation I feel has gotten better, but for a majority of this animation I tried to focus on more dynamic movements with the characters and keep it in a "real setting" instead of Kill The Queen where everything could go against physics and morph into countless shapes which made for really good transitions. With that being said, my favorite part in this animation is after the light...
NoCopyrightSounds, music without limitations. 'Entropy' by Distrion & Alex Skrindo is out now on our new compilation album NCS: Infinity! Download this track for FREE: http://bit.ly/ENTROPYdl Support on iTunes: http://apple.co/1MVLDqm ↕ Listen on Spotify: http://spoti.fi/1KXh4gS Listen on SoundCloud: https://soundcloud.com/nocopyrightsounds/distrion-alex-skrindo-entropy-ncs-release NCS: Infinity Listen on Spotify: http://spoti.fi/1ST8wtb Physical CD & Merch: http://nocopyrightsounds.co.uk/store/ Support on iTunes: http://apple.co/1DjpJus Support on Google Play: http://bit.ly/NCSinfinityGP ▽ Connect with NCS Facebook___ http://facebook.com/NoCopyrightSounds Twitch______ http://twitch.tv/nocopyrightsounds Twitter______ http://twitter.com/NCSounds Spotify______ http://spoti.fi/NCS SoundClo...
Original - https://www.youtube.com/watch?v=R6DXhiBL27U Which is so much better than this thing. For the picture http://grievousfan.deviantart.com/art/Discord-approves-450145218 http://clyp.it/hp3sqvem https://soundcloud.com/simgretina/entropy-sim-gretina-remix
I use this stirling engine to explain entropy. Entropy is normally described as a measure of disorder but I don't think that's helpful. Here's a better description. Visit my blog here: http://stevemould.com Follow me on twitter here: http://twitter.com/moulds Buy nerdy maths things here: http://mathsgear.co.uk
Thanks to Google Making and Science for supporting this series, and to Sean Carroll for collaborating on it! His book can be found here: http://www.penguinrandomhouse.com/books/316646/the-big-picture-by-sean-carroll/ Playlist of the full video series: https://www.youtube.com/playlist?list=PLoaVOjvkzQtyZF-2VpJrxPz7bxK_p1Dd2 Link to Patreon supporters here: http://www.minutephysics.com/supporters.html AMAZING Interactive Entropy explainer by Aatish Bhatia: http://aatishb.github.io/entropy/ This video is about why entropy gives rise to the arrow of time, and also how the initial low-entropy condition of the universe is responsible for the fact that we experience time right now, and how ultimately it will lead to the high-entropy heat death of the universe. REFERENCES & ADDITIONAL INFORMA...
057 - Entropy In this video Paul Andersen explains that entropy is simply the dispersion of matter or energy. He begins with a series of video that show the natural direction of processes. According to the second law of thermodynamics the entropy may never decrease in a closed system. In irreversible processes the entropy will increase over time. The entropy will increase as volume increases, phases change, temperature increases and as the moles of products increases. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: AJ. A Red Balloon ...
Today, there is a lot,
But frequent hints that this won't always be.
We are invariably running out.
The process seems slow because we forget,
Time does not exist.
Absolute zero stares back at us