Question

Differentiate between mobility and compressibility

Answer 1

Compressibility is the measure of how much a given volume of matter decreases when is placed under pressure.
Mobility is the ability to move or to be moved activity and freely through a range of motion.

Answer 2

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Here is your answer,
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Mobility

The charge carrier in most metals is the negatively charged electron (see electron scattering). Mobility is formally defined as the value of the drift velocity per unit of electric field strength; thus, the faster the particle moves at a given electric field strength, the larger the mobility.

Compressibility

In thermodynamics and fluid mechanics,compressibility (also known as the coefficient of compressibility or isothermal compressibility) is a measure of the relative volume change of a fluid or solid as a response to a pressure (or mean stress) change.

Hope that it will help you in your future.
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