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. -23 -92 92 46 -23 -92 92 46 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is not a colligative property? Lowering of vapor pressure None of these Osmotic pressure Depression of freezing point Lowering of vapor pressure None of these Osmotic pressure Depression of freezing point ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry With rise in temperature, the solubility of ammonia in water at a fixed pressure Increases exponentially Decreases Remains unchanged Increases Increases exponentially Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ¾ 0.75ρ at a temperature of __________ °K 300° 400° 273° 300° 300° 400° 273° 300° ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Kinetic theory of gases stipulates that, the Molecules possess appreciable volume Energy is lost during molecular collisions Absolute temperature is a measure of the kinetic energy of molecules None of these Molecules possess appreciable volume Energy is lost during molecular collisions Absolute temperature is a measure of the kinetic energy of molecules None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction) >ΔH Δ H >ΔH Δ H ANSWER DOWNLOAD EXAMIANS APP
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