Viscosity of alcohol at three different temperatures is: n1 at 320 K, n2 at 40∘ C, n3 at 60∘ C. Which of the following relations is correct?
Viscosity of a liquid decreases with increase in temperature.
If C1,C2,C3.........represent the speeds of n1,n2,n3......... molecules, then the root mean square speed is _____.