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Which phenomenon is reduced in capillary electrophoresis when viscosity decreases?

A)Joule heating
B)Analyte diffusion
C)Electroosmotic flow
D)Capillary adsorption

💡 Explanation

Joule heating decreases because lower viscosity reduces frictional drag, therefore less electrical energy is converted to thermal energy, rather than other electrochemical effects. Increased joule heating often denatures sample proteins.

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