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Sanky123
What is entropy ?, And how it effect the system?
Have you done ANY research on your own? What do you know about it so far?Sanky123 said:What is entropy ?, And how it effect the system?
Not actualy researched but ,phinds said:Have you done ANY research on your own? What do you know about it so far?
Ok ...Vijay.V.Nenmeli said:Entropy is defined as the amount of disorder in a system.
Thats just a conceptual definition.
For example, take a box full of, say a 100 molecules in a gas phase.
If the temperature is near absolute zero, each molecule can only move in a limited zone.
But, if I up the temperature, to say 373 K, all the molecules start whizzing about in a much more increased span of space. Not just that, but they also collide with each other more frequently and have more disorder, or entropy, as we say.
As you see, the concept of entropy is related to the temoerature of a system.
If the temperature of a body is altered, so is its molecular movement and thus its entropy.
Mathematically, on heating or cooling a body, we take a small frame of time in which the temperature stays constant, and then figure out the really small change in heat dQ. The CHANGE In entropy is then defined as
dQ/T (T is temperature in KELVIN scale.)
For a large change in temperature, we take all the small changes in entropy and add them up. If you're a calculus student, you'll know this is just integrating the expression dQ/T.
What do u mean sir ?Doug Huffman said:To make the conceptual leap to the entropy of information, it is a measure of the number of bits to fully describe those 100 molecules.
Entropy is a measure of the disorder or randomness in a system. It is important to understand because it helps us predict the direction of natural processes and determine the efficiency of energy conversion in systems.
Entropy impacts systems by determining the availability of energy within the system. As entropy increases, the energy becomes less available for useful work, leading to a decrease in the system's efficiency and organization.
An increase in temperature, an increase in the number of particles, and a decrease in the organization of a system all contribute to an increase in entropy. Any process that increases the randomness or disorder of a system will also increase its entropy.
According to the second law of thermodynamics, entropy in a closed system will always increase over time. However, in some cases, it is possible to reduce entropy in a specific area by increasing it in another area, resulting in an overall decrease in the system's entropy.
Entropy is calculated using the equation S=klnW, where S is the entropy, k is the Boltzmann constant, and W is the number of microstates or arrangements of a system. It is typically measured in units of joules per kelvin (J/K).