Which statements about viscosity are true?
(i)Viscosity increases as temperature decreases.
(ii)Viscosity increases as molecular weight increases.
(iii)Viscosity increases as intermolecular forces increase.
A)(i)only
B)(ii)and (iii)
C)(i)and (iii)
D)none
E)all

Question

Quizplus · Accepted Answer

Viscosity is influenced by temperature, molecular weight, and intermolecular forces. As temperature decreases, molecules move slower and have more interactions, increasing viscosity. Higher molecular weight means larger molecules, which typically interact more strongly and move more slowly relative to each other, increasing viscosity. Stronger intermolecular forces also lead to increased resistance to flow, hence higher viscosity.

Which Statements About Viscosity Are True