Stoichiometry
Measurement of the amount of dry gas collected over water from volume of moist gas is based on the

Dalton's law of partial pressures
Charle's law
Avogadro's hypothesis
Boyle's law

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Stoichiometry
Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m³ . The diffusivity of aniline in air is 0.74xl0⁻⁵m²/s.The numerical value of mass transfer co-efficient is 7.4 x 10⁻³. The rate of evaporation of aniline is 2.97 x 10⁻⁴. Its units are

Mole/cm². s
Mole/m² . s
Mole/s
Kmole/m² . s

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