Stoichiometry The depression in freezing point of a solution is Both A & B Inversely proportional to the mass of solvent Directly proportional to the mole of solute Neither A nor B Both A & B Inversely proportional to the mass of solvent Directly proportional to the mole of solute Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry N₂ content in a urea sample was found to be only 42%. What is the actual urea content of the sample ? (molecular weight of urea = 60) 0.8 0.98 0.95 0.9 0.8 0.98 0.95 0.9 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is 0.8 0.2 0.4 0.6 0.8 0.2 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to X1/x2 1/x2 1 - (x1/x2) X2/x1 X1/x2 1/x2 1 - (x1/x2) X2/x1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Boiling point of a solution as compared to that of the corresponding solvent is Either more or less; depends upon the solvent More Less Same Either more or less; depends upon the solvent More Less Same 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 Cm/s Mole/m².s.Pa Kmole/m².s.Pa M/s Cm/s Mole/m².s.Pa Kmole/m².s.Pa M/s ANSWER DOWNLOAD EXAMIANS APP
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