Stoichiometry In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is Unchanged with pressure changes Increased with decrease in pressure Increases with rise in pressure Independent of temperature Unchanged with pressure changes Increased with decrease in pressure Increases with rise in pressure Independent of temperature 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 Mole/m².s.Pa Kmole/m².s.Pa M/s Cm/s Mole/m².s.Pa Kmole/m².s.Pa M/s Cm/s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Temperature Nature of solvent Nature of solute Pressure Temperature Nature of solvent Nature of solute Pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour Measures the depression in freezing point Is a function of the liquid phase composition Is not dependent on the temperature Measures the elevation in boiling point Measures the depression in freezing point Is a function of the liquid phase composition Is not dependent on the temperature Measures the elevation in boiling point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A sugar solution containing __________ percent sugar is equivalent to 1 Brix. 10 1 0.1 0.01 10 1 0.1 0.01 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ? ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 Both B and C ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 Both B and C ANSWER DOWNLOAD EXAMIANS APP
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