Questions and answers on how to convert things from one unit or system to another



Postby James » Wed Jun 15, 2005 1:17 pm

Conversion of Force expressed in Hartrees/Bohr to attojoule

Re: Force

Postby Guest » Wed Jun 15, 2005 11:11 pm

James wrote:Conversion of Force expressed in Hartrees/Bohr to attojoule

Joules are a unit of energy, not force. Newtons are unit of force.
bohr or bohr radius (a0)
a unit of distance used in particle physics. The bohr radius represents the mean distance between the proton and the electron in an unexcited hydrogen atom. It equals about 52.918 picometers (pm), or 52.918 x 10-12 meter. The unit is named for the Danish physicist Niels Bohr (1885-1962), who explained the structure of atoms in a famous paper in 1913.
hartree (Eh)
a unit of energy used in atomic and moleclar physics, equal to about 4.3598 x 10-18 joule or 27.212 electron volts. The unit is named for the British physicist and mathematician Douglas R. Hartree (1897-1958).

So 1 Hartree/Bohr appears to be 4.3598 aJ/52.918 pm = 82.388 nN.

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