Stoichiometry
An azeotropic solution of two liquids has boiling point lower than either of them, when it

Shows negative deviation from Raoult's law
Shows positive deviation from Raoult's law
Is saturated
Is unsaturated

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

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