What is the physical concept of entropy? Write down its unit
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In statistical mechanics, entropy (usual symbol S) is related to the number of microscopic configurations Ω that a thermodynamic system can have when in a state as specified by some macroscopic variables. Specifically, assuming for simplicity that each of the microscopic configurations is equally probable, the entropy of the system is the natural logarithm of that number of configurations, multiplied by the Boltzmann constant kB. Formally,
Entropy
Common symbols
S
SI unit
joules per kelvin (J K−1)
In SI base units
kg m2 s−2 K−1
Entropy
Common symbols
S
SI unit
joules per kelvin (J K−1)
In SI base units
kg m2 s−2 K−1
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