Stoichiometry Atoms of the same element, but of different masses are called Isobars Isotopes Isotones None of these Isobars Isotopes Isotones None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is 0.18 1 0.24 0.18 1 0.24 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At standard conditions, N₂ + 2O₂ ⇋ 2NO₂; ΔG° = 100 kJ/moleNO + ½O₂ ⇋ 2NO₂; ΔG° = -35 kJ/moleThe standard free energy of formation of NO in kJ/mole is 85 30 15 170 85 30 15 170 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be M/2 M 2M M/4 M/2 M 2M M/4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At a constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to Decrease in mean free path Increase in average molecular speed Increased collision rate among molecules Increase in molecular attraction Decrease in mean free path Increase in average molecular speed Increased collision rate among molecules Increase in molecular attraction ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent. Less than Either more or less; depends on the solvent More than Equal to Less than Either more or less; depends on the solvent More than Equal to ANSWER DOWNLOAD EXAMIANS APP
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