- #1
Lafith
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Can we measure 'absolute entropy' of a system.
Also can entropy become zero at 0 kelvin.is it possible only theoretically?
Also can entropy become zero at 0 kelvin.is it possible only theoretically?
Entropy is a measure of the disorder or randomness in a system. It is a fundamental concept in thermodynamics and statistical mechanics, and it can also be applied to other fields such as information theory and economics.
Entropy is typically measured in units of joules per kelvin (J/K) in the International System of Units (SI). It can also be measured in terms of units of information, such as bits or nats.
No, according to the third law of thermodynamics, the absolute entropy of a perfect crystalline substance at 0 Kelvin is zero. However, this is an idealized scenario and in practical systems, absolute entropy cannot be zero.
Absolute entropy is the value of entropy at a specific temperature, relative to a reference state at 0 Kelvin. It is usually denoted as S and can be calculated using statistical mechanics or thermodynamic properties.
The concept of entropy is based on the idea that a system will tend towards a state of maximum disorder. A negative absolute entropy would imply a negative amount of disorder, which goes against the fundamental principles of entropy. Therefore, absolute entropy cannot be negative.