Coefficient of viscosity of a gas

Coefficient of viscosity of a liquid does not depend upon "_____"

Define coefficient of viscosity of a liquid.

The coefficient of viscosity eta of a gas depends on mass of the gas molecule, its effective diameter and its average speed. It is known that diameter of helium atom is 2.1xx10^(-10) m and its coefficient of viscosity, at room temperature is 2.0 xx 10^(-5) kg m^(-1)s^(-1) . Estimate the effective diameter of CO_(2) molecule if it is known that eta at room temperature for CO_(2) is 1.5 xx 10^(-5) kg m^(-1)s^(-1) .

If temperature rises, the coefficient of viscosity of a liquid ……….. .

The terminal velocity is________proportional to the coefficient of viscosity of the fluid.