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Stoichiometry

Stoichiometry
Disappearance of snow in subzero weather exemplifies the process of

Sublimation
Melting
Evaporation
Vaporisation

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Stoichiometry
Size range of the colloidals particles is

10 - 50 Angstrom
50 - 200 microns
500 - 1000 microns
5 - 200 milli-microns

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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. Its units are

Cm/s
M/s
Kmole/m².s.Pa
Mole/m².s.Pa

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Stoichiometry
__________ equation relates latent heat and boiling point.

Trouton's
Kistyakowsky
Kopp's
Antonie

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Stoichiometry
Enthalpy of a vapor gas mixture may be increased by increasing the

Temperature and the humidity
All of these
Temperature at constant humidity
Humidity at constant temperature

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Stoichiometry
A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO₂, 0.05 gm mole of oxygen and 0.80 gm mole of N₂. What is its molecular weight?

32.6
30.6
28.6
30

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