Stoichiometry A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal Kinetic energy Total energy Potential energy Intermolecular forces of attraction Kinetic energy Total energy Potential energy Intermolecular forces of attraction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.? 0.1 0.2 0.4 0.6 0.1 0.2 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The depression in freezing point of a solution is Inversely proportional to the mass of solvent Both A & B Neither A nor B Directly proportional to the mole of solute Inversely proportional to the mass of solvent Both A & B Neither A nor B Directly proportional to the mole of solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following expressions defines the Baume gravity scale for liquids lighter than water? °Be = (140/G) - 130 °Be = 145 - (145/G) °Be = 200(G-1) °Be = (400/G) - 400 °Be = (140/G) - 130 °Be = 145 - (145/G) °Be = 200(G-1) °Be = (400/G) - 400 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry A vessel of volume 1000 m³ contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately 25 20 17 34 25 20 17 34 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kinematic viscosity of 1 m² /second is equivalent to __________ stokes. 10 103 104 102 10 103 104 102 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS