1.Previous
3.Next

× 10²⁵ m^-3}} is often introduced to define a relative number density (a dimensionless quantity), for any substances at any conditions (not necessarily limited to an ideal gas at 0 °C and 1 atm).

Usage

Using the number density as a function of spatial coordinates, the total number of objects N in the entire volume V can be

1.Previous
3.Next