Physical aspects - Prior knowledge

4 important questions on Physical aspects - Prior knowledge

How many charged and neutral group are at pKa?

pKa = 50% charged groups (A-) and 50% neutral groups (HA)

How are charge and pKa related?

A low charge is present below the pKa and close to pKa. A high charge is found above the pKa.

In which direction does simple shear move?

Horizontal direction

Solid-like foods and liquid foods have certain properties, which?

Solid-like --> elastic properties
Liquid --> viscous properties

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