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Stoichiometry

Stoichiometry
Number of gm moles of solute dissolved in 1 kg of solvent is called its

Molarity
Molality
Formality
Normality

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Stoichiometry
The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.

Increases
Remains unchanged
Increases linearly
Decreases

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Stoichiometry
A vapor that exists above its critical temperature is termed as a __________ vapor.

Unsaturated
Saturated
Sub-cooled
Gaseous

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Stoichiometry
Pick out the wrong unit conversion of heat transfer rate.

1 kcal/hr= 1.163 Watt
1 BTU/ft².hr = 2.712 kcal/m².hr
1 kcal/m².hr = 0.3687 BTU/ft².hr = 1.163 Watt/m²
1 Watt = 1.163 kcal/hr

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Stoichiometry
Disappearance of snow in subzero weather exemplifies the process of

Melting
Sublimation
Evaporation
Vaporisation

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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

Mole/m².s.Pa
Cm/s
M/s
Kmole/m².s.Pa

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