Stoichiometry The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state. Either A or B; depends on the nature of the substance Less Same More Either A or B; depends on the nature of the substance Less Same More ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The amount of Zn (atomic weight = 65) required to form 224 c.c. of H₂ at N.T.P. on treatment with dilute H₂SO₄ will be __________ gm. 6.5 65 0.65 0.065 6.5 65 0.65 0.065 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the Phase rule Experimental data Theoretical equations Emperical equations Phase rule Experimental data Theoretical equations Emperical equations ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition. In the formation of solution, chemical combination/molecular association between unlike molecules takes place No component is concentrated at the surface of the solution The component molecules are non polar and are of almost equal size The attractive forces between like and unlike molecules are almost equal In the formation of solution, chemical combination/molecular association between unlike molecules takes place No component is concentrated at the surface of the solution The component molecules are non polar and are of almost equal size The attractive forces between like and unlike molecules are almost equal ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will Increase nine fold Decrease three fold Remain unaltered Increase three fold Increase nine fold Decrease three fold Remain unaltered Increase three fold 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. 92 -92 46 -23 92 -92 46 -23 ANSWER DOWNLOAD EXAMIANS APP
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