﻿ Calculation of Brownian motion by Einstein formula

# Calculation of Brownian motion by Einstein formula

 1 Boltzmann constant：kB *10^-23 J/K(m^2･kg/s^2/K) - 2 Absolute Temperature：T K 0℃=273.15K 3 Time interval：t s - 4 Viscosity of liquid：η *10^Pa･s - 5 Radius of the spherical particles：a *10^m - 6 Graph x-axis：η,y-axis：＜x^2＞ x-axis：a,y-axis：＜x^2＞ Plot Input Data： YesNo 7 Number of gridlines of Graph x-axis, y-axis -
:Export Graph Image.

## Keyword

Brownian motion,Einstein formula,Boltzmann constant,Absolute Temperature,Time interval,Viscosity of liquid,Radius of the spherical particles

## Reference

[1]：Graham Woan著・堤正義訳：『ケンブリッジ物理公式ハンドブック』,共立出版,p.111,2007.
[2]：Virtual Office Hours, Chemistry & Biochemistry, UCLA ：『Brownian Motion』
[3]：W.Gerhard Pohl：『The theory of Brownian motion-one hundred years old』

## Remarks

・『Δx is the displacement of the particle along the x axis in time interval τ』Reference[2]：x.
・『(Δx)^2 is the average of (Δx)^2 over many measurements』Reference[2]：＜x^2＞
・Boltzmann constant：kB
・Absolute Temperature：T
・Time interval：t
・Viscosity of liquid：η