The volume of a colloidal particle, `V_C` cas compared to the volume of a solute particle in a true solution `V_S` could be

Options

A. `(V_C)/(V_S) ~= 10^3`
B. `(V_C)/(V_S)~= 10^(-3)`
C. `(V_C)/(V_S) ~= 10^(23)`
D. `(V_C)/(V_S) ~= 1`

Answer

A

Explanation

The size of a colloidal particle is about 10 times(say r=10) that of solute particle in a tures solution. Hence, the volume of a collaoidal particle `(V_C)` is `10^(3)` = 1000 times `(V prop r^3)` that of the solute partice in a true solution `(V_S)`
`therefore V_(C) prop 10^3`
`V_S prop 1`
Hence, `(V_C)/(V_s) ~= 10^3`