Soluble poisons, also called chemical shim, produce a spatially uniform neutron absorption when dissolved in the water coolant.

With this random, spatially uniform arrangement of the constituent atoms, their structure is similar to that of liquids.

Empirically it is found that an isolated system, one that exchanges no energy or material with its environment, tends to a spatially uniform temperature as time passes.

For a spatially uniform electric field E, the torque is given by:

If the thermodynamic equilibrium lies in an external force field, it is only the temperature that can in general be expected to be spatially uniform.

However, only a part of the assemblies (typically one-third) are removed since the fuel depletion is not spatially uniform.

It is assumed that the compartment is isopotential and spatially uniform in its properties.

Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field.

Other assumptions include mass balance, constant temperature, constant pressure, spatially uniform concentration of reactants, and so on.

The van Hove Function for a spatially uniform system containing point particles is defined as: