V09_Electroosmosis Mechanism in Microfluidics
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Questions and Answers

Electroosmosis can occur in both microchannels and macrochannels.

False

The application of an axial magnetic field is needed for electroosmosis to occur in microfluidic systems.

False

Ion transport occurs only in the bulk fluid, not in the Electrical Double Layer (EDL).

False

The Electric field in electroosmosis acts as a net force on strongly bounded electric charges in the EDL.

<p>False</p> Signup and view all the answers

The Helmholtz-Theory is related to the mechanism of Electroosmosis.

<p>True</p> Signup and view all the answers

In electroosmosis, moving ions drag their surrounding fluid molecules due to the gravitational effect.

<p>False</p> Signup and view all the answers

In electroosmosis, the Debye length must be larger than the channel diameter.

<p>False</p> Signup and view all the answers

In electroosmosis, the electric field is assumed to be homogeneous in the direction perpendicular to the Electrical Double Layer (EDL).

<p>True</p> Signup and view all the answers

Electroosmosis only occurs in two-phase turbulent flow systems.

<p>False</p> Signup and view all the answers

As per the assumptions, the mechanical properties of the system are not constant in electroosmosis.

<p>False</p> Signup and view all the answers

Outside the Electrical Double Layer (EDL), fluid in electroosmosis is charged by ions and experiences irrotational Coulomb forces.

<p>False</p> Signup and view all the answers

In the matched asymptotic approach for electroosmosis, fluid motion outside the EDL is primarily driven by ions.

<p>False</p> Signup and view all the answers

Electroosmosis (EO) is a mechanism that involves the flow of solvent molecules in a micro channel due to an applied electric field.

<p>True</p> Signup and view all the answers

The Electric Double Layer (EDL) is associated with the accumulation of ions at the solid-liquid interface.

<p>True</p> Signup and view all the answers

The Debye length represents the distance over which the surface charge decays to about 37% of its value at the surface.

<p>True</p> Signup and view all the answers

Helmholtz theory is primarily concerned with the flow profile in microchannels.

<p>False</p> Signup and view all the answers

Gouy-Chapman theory is related to the calculation of the ζ-Potential at the solid-liquid interface.

<p>True</p> Signup and view all the answers

AC-Electroosmotic Mixer involves the use of DC-Electroosmotic Pumps with a travelling wave.

<p>False</p> Signup and view all the answers

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