Question

The pressure is directly proportional to viscosity?

(a) True

(b) False

I had been asked this question by my school teacher while I was bunking the class.

Question is taken from Factors Affecting Broth Viscosity in portion Fluid Flow and Mixing of Bioprocess Engineering

Answer 1

Right answer is (a) True

The best explanation: Viscosity increases with increasing pressure because the amount of free volume in the internal structure decreases due to compression. Consequently, the molecules can move less freely and the internal friction forces increase. The result is an increased flow resistance.