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Chemical Engineering Basics - Engineering

Q1:

Unit of viscosity in CGS system is

A gm .cm-1 sec-1

B gm . cm2 . sec-2

C gm .cm-2, sec-1

D gm . cm . sec-1

ANS:A - gm .cm-1 sec-1

The unit of viscosity in the CGS (Centimeter-Gram-Second) system is gm . cm^(-1) sec^(-1). Explanation: Viscosity is a measure of a fluid's resistance to flow. In the CGS system, viscosity is commonly expressed in units of poise (P), where 1 poise is equivalent to 1 gram per centimeter per second (gm . cm^(-1) sec^(-1)). Therefore, the unit of viscosity in the CGS system is gm . cm^(-1) sec^(-1).