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Stoichiometry - Engineering

Q1:

Pick out the wrong unit conversion.

A l kgf= 9.8 Newton.

B 1 stoke = 1 m2/second.

C 1 Pascal second = 10 poise.

D 1 ppm = 1 ml/m3 = 1 mg/kg.

ANS:B - 1 stoke = 1 m2/second.

The wrong unit conversion is:

  1. 1 stoke = 1 m²/second.
This is incorrect because the unit of kinematic viscosity (Stoke or m²/s) is not equal to the unit of area (m²) divided by the unit of time (second). The correct conversion is: 1 stoke = 1 cm²/s. Therefore, option 2 is the wrong unit conversion.