![]() ![]() (of the arrangement of particles) Factors that affect entropy Physical state Dissolution Number of particles Increasing entropy means increasing. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'entropy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. symbol for entropy S Entropy A measure of disorder or randomness. Sebastian Smee, Washington Post, After seven years in the Hammerskins, exhaustion and entropy were setting in. 2022 Succumbing to something closer to entropy than evolution, the watercolor starts to puddle and bruise. The symbol ' n ' signifies that each entropy must first be multiplied by its coefficient in the balanced. Ahmed Almheiri, Scientific American, 17 Aug. S o n S o ( products) n S o ( reactants) The standard entropy change is equal to the sum of the standard entropies of the products minus the sum of the standard entropies of the reactants. The amount of randomness in X (in bits) 2. ![]() As we’ll find out in a later section, entropy has a lot of use for chemists and physicists in determining the spontaneity of a process. The entropy can be thought of as any of the following intuitive de nitions: 1. The letter serves as the symbol for entropy. We’ll consider X to be a discrete random variable. 2021 This is the island formula for the entanglement entropy of the Hawking radiation. 2 Entropy For information theory, the fundamental value we are interested in for a random variable X is the entropy of X. Conor Feehly, Discover Magazine, 3 Nov. James Riordon, Scientific American, In short, the tendency for systems to move from low entropy to high entropy, the particular spacetime conditions of our solar system and the indeterminacy of the future combine to create our particular conception of time. James Riordon, Scientific American, The expansion allows the universe to smooth out, dissipating the entropy before collapsing again. Quanta Magazine, That flaw is entropy, which builds up as a universe bounces. 2022 If the entropy of the system decreases, the entropy of the environment must increase such that the sum of the two entropies can only increase or stay the same, but never decrease. Jennifer Ouellette, Ars Technica, 2 Dec. Standard entropies for a few substances are shown in the table below. Recent Examples on the Web Jacob Bekenstein realized in 1974 that black holes also have entropy. The symbol for entropy is S and the standard entropy of a substance is given by the symbol So, indicating that the standard entropy is determined under standard conditions. ![]()
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