Given below are two statements. Statement I: Viscosity of liquid decreases with increase in temperature.…
Given below are two statements.
Statement I: Viscosity of liquid decreases with increase in temperature.
Statement II: The units of viscosity are $\mathrm{kg} \mathrm{m}^{-1} \mathrm{~s}^{-2}$.
The correct answer is
Both statement-I and statement-II are correct
Both statement-I and statement-II are not correct
Statement-I is correct but statement-I is not correct
Statement-I is not correct but statement-II is correct
Solution
Viscosity depends strongly on temperature in liquids it usually decrease with increasing temperature because temperature increase the kinetic energy of the molecule as a result the molecule overcomes the intermolecular attractive force between them.
Units of viscosity is Pascal-second or $\mathrm{kg} \mathrm{m}^{-1} \mathrm{~s}^{-1}$.