Stoichiometry Size range of the colloidals particles is 500 - 1000 microns 5 - 200 milli-microns 50 - 200 microns 10 - 50 Angstrom 500 - 1000 microns 5 - 200 milli-microns 50 - 200 microns 10 - 50 Angstrom ANSWER DOWNLOAD EXAMIANS APP
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 M/s Cm/s Mole/m².s.Pa Kmole/m².s.Pa M/s Cm/s Mole/m².s.Pa Kmole/m².s.Pa ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The elevation in boiling point of a solution is proportional to the __________ of the solution. Reciprocal of the molal concentration Molal concentration Molarity Normality Reciprocal of the molal concentration Molal concentration Molarity Normality ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute. Remain unchanged None of these Decrease Increase Remain unchanged None of these Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At higher temperatures, molal heat capacities for most of the gases (at constant pressure) __________ with increase in temperature. Does not vary Increases Varies linearly Decreases Does not vary Increases Varies linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A solution with reasonably permanent pH is called a/an __________ solution. Ideal Colloidal Buffer Non-ideal Ideal Colloidal Buffer Non-ideal ANSWER DOWNLOAD EXAMIANS APP
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