Properties of Colloidal Dispersions: Brownian Motion

Has no effect on Brownian motion

Increases the Brownian motion of dispersed-phase particles (correct)

Reduces the velocity of the particles

Decreases the rate of diffusion

Contributing to the diffusion from a region of higher concentration to one of lower concentration

Regulating the rate of diffusion as per Fick’s first law

Causing colloidal particles to pursue an irregular and complicated zigzag path (correct)

Increasing the viscosity of the medium

The velocity varies randomly

The velocity of the particles decreases

The velocity of the particles increases (correct)

The velocity remains constant

<p>It decreases Brownian movement due to greater resistance to movement of the dispersed-phase particles</p> Signup and view all the answers

<p>The rate of diffusion, expressed by J = dm/ A.dt = – D dC/dx</p> Signup and view all the answers