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계의 무질서도 또는 무작위성의 정도를 측정하는 열역학적 양으로, J/K 단위로 표현한다.
설명
The Second Law of Thermodynamics states that total entropy of an isolated system always increases over time. An ice cube melting in a warm room increases entropy as ordered crystal structure becomes disordered liquid. Entropy also underpins information theory: Claude Shannon borrowed the concept to quantify uncertainty in data, where 1 bit of entropy represents a 50/50 choice.
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