surface tension#!#viscosity

The units of surface tension and viscosity of liquids are respectively

The units of surface tension and viscosity of liquids are respectively "______________" .

What is the effect of temperature on surface tension and viscosity?

Would you expect surface tension and viscosity of a liquid to increases or decrease with increasing temperature? Explain.

Which is not the characteristic of hydrophobic sols? a. They are highly susceptible to coagulation by addition of electrolytes. b. They have nearly the same surface tension and viscosity as that of dispersion medium. c. Their stability is due to both electric charge and salvation of the particles. d. Sol particles can be seen under ultramicroscope.