Stoichiometry The vapour pressure of water is given by, in Psat = A - (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K.The vapor pressure of water in atm. at 50°C is approximately 0.11 0.07 0.13 0.09 0.11 0.07 0.13 0.09 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Pressure Temperature Nature of solvent Nature of solute Pressure Temperature Nature of solvent Nature of solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is 2/3 1/2 1/3 1/4 2/3 1/2 1/3 1/4 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. The rate of evaporation of aniline is 2.97 x 10⁻⁴. Its units are Kmole/m² . s Mole/cm². s Mole/s Mole/m² . s Kmole/m² . s Mole/cm². s Mole/s Mole/m² . s ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its Both B and C Bubble point Dew point Saturation temperature Both B and C Bubble point Dew point Saturation temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Addition of a non-volatile solute to a pure solvent Both B and C Increases its boiling point Increases its freezing point Decreases its freezing point Both B and C Increases its boiling point Increases its freezing point Decreases its freezing point ANSWER DOWNLOAD EXAMIANS APP
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