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Stoichiometry

1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is__________________?

Stoichiometry /
1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is__________________?

A. C4H9OH
B. C3H21OH
C. (C2H4)2H2.OH
D. C2H33OH

1 gm mole of an alcohol whose molecular weight is 74 contains 48 gms of carbon, 10 gms of hydrogen and 16 gms of oxygen. Its molecular formula is__________________? Read More »

Stoichiometry

Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the________________?

Stoichiometry /
Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the________________?

A. Vapor follows the ideal gas law
B. Molal latent heat of vaporisation is constant within the limited temperature range
C. Volume in the liquid state is negligible compared with that in the vapor state
D. All A., B. & C.

Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the________________? Read More »

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 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are_______________________?

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 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are_______________________?

A. m/s
B. cm/s
C. mole/m2.s.Pa
D. k.mole/m2.s.Pa

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 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are_______________________? Read More »

Stoichiometry