Chemical Engineering Basics - Engineering

Q1:

Pick out the wrong conversion of absolute & kinematic viscosities.

A 1 stoke = 1 cm2/sec.

B 1 N.sec/m2 = 10 paise.

C 1 stoke = 1 m2/sec.

D 1 m2/sec = 104 stokes.

ANS:C - 1 stoke = 1 m2/sec.

The wrong conversion of absolute and kinematic viscosities is: "1 stoke = 1 m^2/sec." This conversion is incorrect because the unit of kinematic viscosity is typically expressed in square meters per second (m^2/s), not stokes (which are expressed in centimeters squared per second, cm^2/s). The correct unit conversion for kinematic viscosity from stokes to square meters per second is: 1 stoke = 10^-4 m^2/sec. Therefore, the correct conversion should be: 1 stoke = 10^-4 m^2/sec.