The number of Roche mitts

The number of Roche mitts Loschmidt's constant
Sign	n0
Value	7025268678110000000♠2.6867811(15)×1025 m-3
It is relative standard uncertainty	5.7*10-7
The etymology	Johan Roche mitt
I display a template

The number of Roche mitts (British: Loschmidt's constant (number), sign :n0, N_L) is 5000000000000000000♠0 ° C, the molecular number included in the ideal air of unit of 1 standard atmosphere volumes.

Divide Avogadro constant NA = 7023602214085700000♠6.022140857(74) *1,⁰²³ mol ^-1 [¹] to express a molecular number included in 7000100000000000000♠1 mol in molar volume Vm = 6998224139620000000♠22.413962(13) *1^0-3^m3 mol^-1 [²] of the ideal air, and can demand it; the value in 5000000000000000000♠0 ° C (exactly 7002273149999999999♠273.15 K), 1 standard atmosphere (exactly 7005101325000000000♠101.325 kPa),

n0 = N_A/_Vm = 7025268678110000000♠2.6867811(15) *1,⁰²5m ^-3

である (the parenthesis is standard uncertainty CODATA recommendation level ^[3] for 2,014 years).

The molecular number in gas was found in this form using heat conduction of gas in 1865 by Johan Roche mitt. However, with the development of the scientific field, the Avogadro constant that a definition is clear is adopted for a more basic fixed number.

In the physics, I may do the gaseous molecular number in a unit volume than gas of 7000100000000000000♠1 mol with a problem, and the number of Roche mitts is used, too.

In the German zone in particular, have ever named Avogadro constant the number of Roche mitts [⁴]; [⁵].

Footnote

The source

1. ^ CODATA Value
2. ^ CODATA Value
3. ^ CODATA Value
4. ^ Nippon University encyclopedia (ニッポニカ) "Avogadro constant" - Koto bank
5. ^ Dictionary of the law『Avogadro's constant』 - Koto bank

References

• 『Nippon University encyclopedia』 Shogakukan, April, 1993. ISBN 978-4,095,269,306。 ASIN 4095269308.
• "Dictionary Akira Yamasaki (編) of the law", Asakura Bookstore, September 10, 2006. National bibliography number: 21105817。 ISBN 978-4-254-10197-3。 NCID BA7838617X。 OCLC 894512342. ASIN 425410197X.

Outside link

• "CODATA Value: Loschmidt constant". NIST (June 25, 2015). December 30, 2015 reading.
• "CODATA value: Avogadro constant". NIST (June 25, 2015). August 4, 2015 reading.
• "CODATA Value: molar volume of ideal gas". NIST (June 25, 2015). December 30, 2015 reading.
• Encyclopedia マイペディア "number of Roche mitts" - Koto bank
• Loschmidt' s number - The Encyclopaedia Britannica

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