Search results
- Dictionaryen·tro·py/ˈentrəpē/
noun
- 1. a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system: "the second law of thermodynamics says that entropy always increases with time"
- 2. lack of order or predictability; gradual decline into disorder: "a marketplace where entropy reigns supreme"
Powered by Oxford Dictionaries
Nov 28, 2021 · Entropy is a measure of the randomness or disorder of a system. Its symbol is the capital letter S. Typical units are joules per kelvin (J/K). Change in entropy can have a positive (more disordered) or negative (less disordered) value. In the natural world, entropy tends to increase.
The meaning of ENTROPY is a measure of the unavailable energy in a closed thermodynamic system that is also usually considered to be a measure of the system's disorder, that is a property of the system's state, and that varies directly with any reversible change in heat in the system and inversely with the temperature of the system; broadly ...
In short, the thermodynamic definition of entropy provides the experimental verification of entropy, while the statistical definition of entropy extends the concept, providing an explanation and a deeper understanding of its nature.
May 29, 2024 · Entropy, the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, entropy is also a measure of the molecular disorder, or randomness, of a system.
Sep 29, 2022 · Entropy Definition . Entropy is the measure of the disorder of a system. It is an extensive property of a thermodynamic system, which means its value changes depending on the amount of matter that is present. In equations, entropy is usually denoted by the letter S and has units of joules per kelvin (J⋅K −1) or kg⋅m 2 ⋅s −2 ⋅K −1.
The change in entropy can be calculated from the definition of Δ S Δ S once we find the energy, Q, needed to melt the ice.
Entropy definition: (on a macroscopic scale) a function of thermodynamic variables, as temperature, pressure, or composition, and differing from energy in that energy is the ability to do work and entropy is a measure of how much energy is not available.
ENTROPY definition: 1. the amount of order or lack of order in a system 2. a measurement of the energy in a system or…. Learn more.
Jun 18, 2024 · Thermodynamics - Entropy, Heat, Energy: The concept of entropy was first introduced in 1850 by Clausius as a precise mathematical way of testing whether the second law of thermodynamics is violated by a particular process.
noun [ U ] us / ˈen·trə·pi / ( symbol S) Add to word list. physics, chemistry. a measure of the amount of heat energy that is not available to do work.
