The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
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Sackur-Tetrode constant (1 K, 100 kPa)
 $  S_0/R = {5\over2} + \ln [(m_{\rm u} k T_1/2\rmpi\hbar^2)^{3/2} k T_1/p_0] \quad (1\,{\rm K},\, 100\,{\rm kPa}) $
 Numerical value  -1.151 707 537 06
 Standard uncertainty   0.000 000 000 45
  Relative standard uncertainty  3.9 x 10-10
 Concise form  -1.151 707 537 06(45)    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values
 
Definition of
uncertainty
 
     Correlation coefficient with
any other constant

 
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