The volume of a colloidal particle, VC as compared to the volume of a solute particle in a true solution VS, could be :

Question

The volume of a colloidal particle, VC as compared to the volume of a solute particle in a true solution VS, could be : (A)  (Vc/Vs) ≈ 103 (B)  (Vc/Vs)≃ 10-3 (C)  (Vc/Vs)≃ 1023 (D)  (Vc/Vs)≃ 1

Tardigrade Admin · Accepted Answer

Size of colloidal particles = 1 to 100 nm (say 10 nm) Vc = (4/3)π r3 = (4/3)π(10)3 Size of true solution particles ≈ 1 nm Vs = (4/3)π (1)3 Thus (Vc/Vs) = 103

Q. The volume of a colloidal particle, $V_{C}$ as compared to the volume of a solute particle in a true solution $V_{S}$ , could be :

$\frac{V _{c}}{V _{s}} \approx 1 0^{3}$

$\frac{V _{c}}{V _{s}} ≃ 1 0^{- 3}$

$\frac{V _{c}}{V _{s}} ≃ 1 0^{23}$

$\frac{V _{c}}{V _{s}} ≃ 1$

Size of colloidal particles = 1 to 100 nm (say 10 nm)
$V_{c} = \frac{4}{3} π r^{3} = \frac{4}{3} π (10)^{3}$
Size of true solution particles $\approx$ 1 nm
$V_{s} = \frac{4}{3} π (1)^{3}$
Thus $\frac{V _{c}}{V _{s}} = 1 0^{3}$

Q. The volume of a colloidal particle, VC​ as compared to the volume of a solute particle in a true solution VS​, could be :

Vs​Vc​​≈103

Vs​Vc​​≃10−3

Vs​Vc​​≃1023

Vs​Vc​​≃1