In thermodynamics, entropy is often associated with the amount of order or disorder in a thermodynamic system. This stems from Rudolf Clausius' 1862 assertion that any thermodynamic process always "admits to being reduced [reduction] to the alteration in some way or another of the arrangement of the constituent parts of the working body" and that internal work associated with these alterations is quantified energetically by a measure of "entropy" change, according to the following differential expression: where Q = motional energy (“heat”) that is transferred reversibly to the system from the surroundings and T = the absolute temperature at which the transfer occurs In the years to follow, Ludwig Boltzmann translated these 'alterations of arrangement' into a probabilistic view of order and disorder in gas-phase molecular systems. In the context of entropy, "perfect internal disorder" has often been regarded as describing thermodynamic equilibrium, but since the thermodynamic concept is so far from everyday thinking, the use of the term in physics and chemistry has caused much confusion and misunderstanding. In recent years, to interpret the concept of entropy, by further describing the 'alterations of arrangement', there has been a shift away from the words 'order' and 'disorder', to words such as 'spread' and 'dispersal'. (Wikipedia).
Entropy is often taught as a measure of how disordered or how mixed up a system is, but this definition never really sat right with me. How is "disorder" defined and why is one way of arranging things any more disordered than another? It wasn't until much later in my physics career that I
From playlist Thermal Physics/Statistical Physics
A better description of entropy
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:
From playlist Best of
http://www.teachastronomy.com/ Entropy is a measure of disorder. The theory of thermodynamics states that entropy will tend to increase in any physical system. It also shows that heat is the most disordered form of energy because it represents the random motion of atoms and molecules, so
From playlist 15. Stars 2
Teach Astronomy - Entropy of the Universe
http://www.teachastronomy.com/ The entropy of the universe is a measure of its disorder or chaos. If the laws of thermodynamics apply to the universe as a whole as they do to individual objects or systems within the universe, then the fate of the universe must be to increase in entropy.
From playlist 23. The Big Bang, Inflation, and General Cosmology 2
Physics - Thermodynamics 2: Ch 32.7 Thermo Potential (10 of 25) What is Entropy?
Visit http://ilectureonline.com for more math and science lectures! In this video explain and give examples of what is entropy. 1) entropy is a measure of the amount of disorder (randomness) of a system. 2) entropy is a measure of thermodynamic equilibrium. Low entropy implies heat flow t
From playlist PHYSICS 32.7 THERMODYNAMIC POTENTIALS
Entropy: Embrace the Chaos! Crash Course Chemistry #20
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 muc
From playlist Chemistry
Entropy's role on Thermodynamics
Thermodynamics depends on enthalpy, but it also depends on entropy. Entropy is a quantitative measure of the disorder of a system. We can see how reactions tend to go from order to disorder. At best they can switch between the two reversibly (second law of thermodynamics). There exist reac
From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020
Entropy production during free expansion of an ideal gas by Subhadip Chakraborti
Abstract: According to the second law, the entropy of an isolated system increases during its evolution from one equilibrium state to another. The free expansion of a gas, on removal of a partition in a box, is an example where we expect to see such an increase of entropy. The constructi
From playlist Seminar Series
Your Daily Equation #32: Entropy and the Arrow of Time
Episode 32 #YourDailyEquation: Einstein referred to entropy and the second law of thermodynamics as the only insights into the workings of the world that would never be overthrown. Join Brian Greene as he explores how these concepts illuminate the difference between past and future--why gl
From playlist Your Daily Equation with Brian Greene
Why does time go forward? How does Entropy relate to the direction of time? What really is time, and what gives it a direction? The Arrow of Time. Hi! I'm Jade. I draw pictures that move and become animated physics videos. ***SUBSCRIBE*** https://www.youtube.com/c/upandatom ***Let's b
From playlist Physics
Entropy in Self-Assembly (Lecture 1) by Francesco Sciortino
PROGRAM ENTROPY, INFORMATION AND ORDER IN SOFT MATTER ORGANIZERS: Bulbul Chakraborty, Pinaki Chaudhuri, Chandan Dasgupta, Marjolein Dijkstra, Smarajit Karmakar, Vijaykumar Krishnamurthy, Jorge Kurchan, Madan Rao, Srikanth Sastry and Francesco Sciortino DATE: 27 August 2018 to 02 Novemb
From playlist Entropy, Information and Order in Soft Matter
Second law of thermodynamics | Chemical Processes | MCAT | Khan Academy
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to
From playlist Chemical processes | MCAT | Khan Academy
Why Did Time Start Going Forward?
Researched and Written by Leila Battison Narrated and Edited by David Kelly Thumbnail Art by Ettore Mazza If you like our videos, check out Leila's Youtube channel: https://www.youtube.com/channel/UCXIk7euOGq6jkptjTzEz5kQ Music from Silver Maple, Epidemic Sound and Artlist. Stock foota
From playlist The Entire History of the Universe
Physics - Thermodynamics: (1 of 5) Entropy - Basic Definition
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain and help you understand entropy.
From playlist PHYSICS - THERMODYNAMICS
MIT 5.111 Principles of Chemical Science, Fall 2008 View the complete course: http://ocw.mit.edu/5-111F08 Instructor: Catherine Drennan, Elizabeth Vogel Taylor License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2008
AP Chem: Thermodynamics-1: Entropy and Enthalpy (1/4)
AP Chem: Thermodynamics-1: Entropy and Enthalpy Join Two Presidential Award Winners as they teach AP Chemistry (Jonathan Bergmann & Aaron Sams) Spontaneity and Entropy Thermo Laws Free Energy Calculations and Thermo
From playlist Flipped Learning: AP Chemistry Lessons
Teach Astronomy - The Arrow of Time
http://www.teachastronomy.com/ There may be a profound connection between entropy in the universe and the arrow of time, the pervasive since that time moves only in one direction. Remember that the microscopic laws of physics have no arrow of time. However, in any statistical system of p
From playlist 23. The Big Bang, Inflation, and General Cosmology 2