Stoichiometry The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times. 43834 √2 4 43832 43834 √2 4 43832 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are PvB and Pvw respectively. The partial pressure of benzene in air-vapour mixture is XB.PvB XB.Patm (Patm - Pvw)xB PvB XB.PvB XB.Patm (Patm - Pvw)xB PvB ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about 0.19 0.33 0.67 0.40 0.19 0.33 0.67 0.40 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is insensitive to changes in pressure? Heat of vaporisation Melting point Heat of fusion Both B & C Heat of vaporisation Melting point Heat of fusion Both B & C ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases. Intermolecular forces Kinetic energy Total energy Potential energy Intermolecular forces Kinetic energy Total energy Potential energy ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the Emperical equations Phase rule Experimental data Theoretical equations Emperical equations Phase rule Experimental data Theoretical equations ANSWER DOWNLOAD EXAMIANS APP
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