Stoichiometry The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________ 1020 1023 1026 1019 1020 1023 1026 1019 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Enthalpy of formation of NH₃ is - 46 kJ/kg mole. The enthalpy change for the gaseous reaction, 2NH₃ → N₂ + 3H₂, is equal to __________ kJ/kg. mole. 46 92 -92 -23 46 92 -92 -23 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 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 Total energy Intermolecular forces of attraction Potential energy Kinetic energy Total energy Intermolecular forces of attraction Potential energy Kinetic energy 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 0.6 0.2 0.4 0.1 0.6 0.2 0.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Cp - Cv, for an ideal gas is equal to 2R R/2 R 3R 2R R/2 R 3R ANSWER DOWNLOAD EXAMIANS APP
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