Chromatography: The difference in kinetic energy

[Elsa1234]

In chromatography, the upper portion of the moving water solvent has more kinetic energy, than the lower portion of the moving water solvent because the lower portion of water molecules have to face more obstacles in the way because of the absorbed water molecules. Is it true?

 

[DrClaude]

This question is hard to understand. What kind of chromatography are you referring to? And what do you mean by "upper portion" and "lower portion"?

 

[Elsa1234]

This question is hard to understand. What kind of chromatography are you referring to? And what do you mean by "upper portion" and "lower portion"?

I'm referring to paper chromatography. And by upper portion, I mean the upper area where the solvent column on the paper strip is moving forward, and by lower portion I mean the lower area on the paper strip where the solvent column appears to have stopped.