Loschmidt constant

Johann Josef Loschmidt first calculated the value of Avogadro s number often referred to as the Loschmidt number in German-speaking countries Loschmidt constant now has another meaning). 

The Loschmidt constant o is the number of particles (atoms or molecules) of an ideal gas in a given volume V (the number density), and is usually quoted at standard temperature and pressure ... 

The acceleration of a particular ion between braking events is proportional to E by Equation 1.5 and their frequency is proportional to N. Hence v is proportional to E/N (Figure 1.3d and e) and, by Equation 1.8, ITis proportional to 1 /N. The absolute mobility scale enabling comparisons between IMS data at different N is established by introducing the reduced mobility, Kq—the value for standard temperature and pressure, STP (To = 273.16 K and Pq = 760 Torr or Aq = 2.687 x 10 m ), the Loschmidt constant. Assuming an ideal buffer gas, the mobility under any conditions may be converted to Kq using ... 

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