Orders of magnitude (entropy)

The following list shows different orders of magnitude of entropy.

Factor (J K⁻¹)	Value	Item
10⁻²⁴	9.5699×10⁻²⁴ J K⁻¹	Entropy equivalent of one bit of information, equal to k times ln(2)^[1]
10⁻²³	1.381×10⁻²³	Planck entropy
1	5.74 J K⁻¹	Standard entropy of 1 mole of graphite^[2]
10³³	≈ 10³⁵ J K⁻¹	Entropy of the Sun (given as ≈ 10⁴² erg K⁻¹ in Bekenstein (1973))^[3]
10⁵⁴	1.5 × 10⁵⁴ J K⁻¹	Entropy of a black hole of one solar mass (given as ≈ 10⁶⁰ erg K⁻¹ in Bekenstein (1973))^[3]
10⁸¹	4.3 × 10⁸¹ J K⁻¹	One estimate of the theoretical maximum entropy of the universe^[4]^[5]

See also

Orders of magnitude (data), relates to information entropy
Order of magnitude (terminology)

References

Jean-Bernard Brissaud (14 February 2005). "The Meaning of Entropy" (PDF). Entropy, 2005, 7[1], 68–96. Retrieved 2010-04-21. page 72 (page 5 of pdf)
Chung Chieh. "Entropy: A Study Guide". Retrieved 2010-04-21.
Jacob D. Bekenstein (1973). "Black Holes and Entropy" (PDF). Physical Review D. 7 (8): 2333–2346. Bibcode:1973PhRvD...7.2333B. doi:10.1103/PhysRevD.7.2333. Archived from the original (PDF) on 2010-05-23.
Chas A. Egan; Charles H. Lineweaver (25 January 2010). "A Larger Estimate of the Entropy of the Universe". The Astrophysical Journal. 710 (2): 1825–1834. arXiv:0909.3983. Bibcode:2010ApJ...710.1825E. doi:10.1088/0004-637X/710/2/1825. "3.1 x 10^104k"

Calculated: 3.1e104 * k = 3.1e104 * 1.381e-23 J/K = 4.3e81 J/K

vte

Orders of magnitude
Quantity

Acceleration Angular momentum Area Bit rate Charge Computing Currency Current Data Density Energy / Energy density Entropy Force Frequency Illuminance Length Luminance Magnetic field Mass Molarity Numbers Power Pressure Probability Radiation Sound pressure Specific heat capacity Speed Temperature Time Voltage