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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
2 years, 1 month ago

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The entropy of this note is too damn high! Raghav Vaidyanathan · 2 years, 1 month ago

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@Raghav Vaidyanathan Haha, I got that xD xD xD Thanks To @Agnishom Chattopadhyay xD Mehul Arora · 2 years, 1 month ago

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@Mehul Arora Try answering the question on coins. Agnishom Chattopadhyay · 2 years, 1 month 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 · 2 years, 1 month ago

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@Parth Lohomi In which class are you? @Mehul Arora Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi @Parth Lohomi , Class 9 Now. :D Mehul Arora · 2 years, 1 month 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 · 2 years, 1 month ago

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@Parth Lohomi Best of Luck to you! :D :D Mehul Arora · 2 years, 1 month ago

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@Mehul Arora Are you done with the explanation? Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi Not yet. :/ Mehul Arora · 2 years, 1 month 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 · 2 years, 1 month ago

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@Parth Lohomi Went tangentially over my head xD Mehul Arora · 2 years, 1 month ago

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@Mehul Arora Typo should be "tangentially" Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi My bad :3 Mehul Arora · 2 years, 1 month ago

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@Mehul Arora Haha... Parth Lohomi · 2 years, 1 month ago

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@Mehul Arora I see!! XD... Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi Hey parth! accept my request on fb.Thanks Nihar Mahajan · 2 years, 1 month 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 · 2 years, 1 month ago

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@Nihar Mahajan You happy now? c'mmon find the reason.. Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi Find the reason? For what? Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan In which class are you Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi I entered 10th std. BTW how ur age changed from 14 to 13? xD Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan BCos i am actually 13 XD Parth Lohomi · 2 years, 1 month 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 · 2 years, 1 month 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 · 2 years, 1 month ago

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@Parth Lohomi Being level 5 in calculus at age of 13! Thats so extraordinary! :P Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan Calculus is my favourite topic in mathematics.. Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi Will u create your own messageboard? It will be easier for all to communicate there. Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan Ah ya sure! (first i want 1000 followers XD) Parth Lohomi · 2 years, 1 month ago

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@Nihar Mahajan See your notifications!! Parth Lohomi · 2 years, 1 month ago

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@Parth Lohomi LOL why are u following me again? xD -_- @Parth Lohomi Nihar Mahajan · 2 years, 1 month 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 · 2 years, 1 month ago

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@Agnishom Chattopadhyay I guess, The 2nd one. (b) Mehul Arora · 2 years, 1 month ago

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@Mehul Arora Correct.

How many bits of entropy are contained in a system containing two coins? Agnishom Chattopadhyay · 2 years, 1 month ago

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

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@Mehul Arora Kayrrect!

Have you heard of the equation S= K ln(W)? Agnishom Chattopadhyay · 2 years, 1 month 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 · 2 years, 1 month 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 · 2 years, 1 month ago

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Mehul , this might help you . Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan For trying to help someone , one gets downvotes. How selfish the downvoters might be! :/ -_- Nihar Mahajan · 2 years, 1 month 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 · 2 years, 1 month ago

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@Agnishom Chattopadhyay It might be useful for someone else! -_- Nihar Mahajan · 2 years, 1 month ago

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@Nihar Mahajan I agree. I just expressed my opinion. Thank you for sharing the article anyway :) Agnishom Chattopadhyay · 2 years, 1 month ago

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@Nihar Mahajan xD I know! Try My Problem! The one Inspired by you :) Mehul Arora · 2 years, 1 month ago

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@Mehul Arora I almost got it .... am working on it.. :) Nihar Mahajan · 2 years, 1 month ago

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