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Introduction to Entropy

Hi everyone. I learnt About Entropy Today, But I didn't quite seem to Understand it. Anyone Who Can Explain It to me?Thanks In advance!

Note by Mehul Arora
1 year, 9 months ago

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The entropy of this note is too damn high! Raghav Vaidyanathan · 1 year, 9 months ago

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@Raghav Vaidyanathan Haha, I got that xD xD xD Thanks To @Agnishom Chattopadhyay xD Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Try answering the question on coins. Agnishom Chattopadhyay · 1 year, 9 months ago

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I think , entropy is a measure of the number of specific ways in which a system(keep in mind that the system is thermodynamic) may be arranged. Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi In which class are you? @Mehul Arora Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi @Parth Lohomi , Class 9 Now. :D Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Preparing for RMO, best of luck....[ I will not be there to congratulate you that time :(.....] Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Best of Luck to you! :D :D Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Are you done with the explanation? Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Not yet. :/ Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Let's tell you more

\[\triangle S=\displaystyle\int \dfrac{dQ_{rev}} {T} \]

\(\triangle S\) is change in entropy...

\(T\) is absolute temperature Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Went tangentially over my head xD Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Typo should be "tangentially" Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi My bad :3 Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Haha... Parth Lohomi · 1 year, 9 months ago

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@Mehul Arora I see!! XD... Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Hey parth! accept my request on fb.Thanks Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan Hey Sorry. I am not too much Online guy.... So am inactive but will surely accept it when I open it next time!! Parth Lohomi · 1 year, 9 months ago

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@Nihar Mahajan You happy now? c'mmon find the reason.. Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Find the reason? For what? Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan In which class are you Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi I entered 10th std. BTW how ur age changed from 14 to 13? xD Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan BCos i am actually 13 XD Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Oh! How u be so intelligent even if ur so young? You will crack IIT for sure with good rank. :) Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan I am not "so intelligent"... Just an average guy.. And for the IIT stuff i will try my best... (see my status) Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Being level 5 in calculus at age of 13! Thats so extraordinary! :P Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan Calculus is my favourite topic in mathematics.. Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi Will u create your own messageboard? It will be easier for all to communicate there. Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan Ah ya sure! (first i want 1000 followers XD) Parth Lohomi · 1 year, 9 months ago

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@Nihar Mahajan See your notifications!! Parth Lohomi · 1 year, 9 months ago

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@Parth Lohomi LOL why are u following me again? xD -_- @Parth Lohomi Nihar Mahajan · 1 year, 9 months ago

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Not understanding Entropy is okay. It is the hardest concept in information theory and thermodynamics.

Entropy is the amount of information in a system.

Can it be equated to randomness? Yes! Because, to store more random arrangements, you need more bits. However, the more the order, the less the entropy. Why? Because to store the arrangement, you just need to know the order.

Which of the following string has more entropy? a) aaaaaaaaaaa b) xyzhwkofgbf c) aaaabbbbccc Agnishom Chattopadhyay · 1 year, 9 months ago

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@Agnishom Chattopadhyay I guess, The 2nd one. (b) Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Correct.

How many bits of entropy are contained in a system containing two coins? Agnishom Chattopadhyay · 1 year, 9 months ago

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@Agnishom Chattopadhyay 2? I don't Have any Idea about This. Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Kayrrect!

Have you heard of the equation S= K ln(W)? Agnishom Chattopadhyay · 1 year, 9 months ago

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@Agnishom Chattopadhyay Nope, Not ever xD xD I wanted to Learn the basics On Entropy. Like, The definition and all. Once I have the Base Strong, I shall move to the Advanced study on this topic. Thanks @Parth Lohomi @Agnishom Chattopadhyay @Raghav Vaidyanathan and @Nihar Mahajan Mehul Arora · 1 year, 9 months ago

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@Mehul Arora Try this problem: Maxwell's Demon

It explains some interesting things about entropy from an Information Theory and Thermodynamic point of view Agnishom Chattopadhyay · 1 year, 9 months ago

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Mehul , this might help you . Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan For trying to help someone , one gets downvotes. How selfish the downvoters might be! :/ -_- Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan Sorry, I downvoted the comment because the thought an encyclopedia link would not be too useful Agnishom Chattopadhyay · 1 year, 9 months ago

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@Agnishom Chattopadhyay It might be useful for someone else! -_- Nihar Mahajan · 1 year, 9 months ago

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@Nihar Mahajan I agree. I just expressed my opinion. Thank you for sharing the article anyway :) Agnishom Chattopadhyay · 1 year, 9 months ago

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@Nihar Mahajan xD I know! Try My Problem! The one Inspired by you :) Mehul Arora · 1 year, 9 months ago

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@Mehul Arora I almost got it .... am working on it.. :) Nihar Mahajan · 1 year, 9 months ago

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