Stoichiometry The number of atoms of oxygen present in 11.2 litres of ozone (O₃) at N.T.P. are 1.20 x 10²⁴ 3.01 x 10²² 9.03 x 10²⁴ 6.02 x 10²³ 1.20 x 10²⁴ 3.01 x 10²² 9.03 x 10²⁴ 6.02 x 10²³ ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is H₂O > C₂H₅OH > CS₂ CS₂ > C₂H₅OH > H₂O H₂O > CS₂ > C₂H₅OH CS₂ > H₂O > C₂H₅OH H₂O > C₂H₅OH > CS₂ CS₂ > C₂H₅OH > H₂O H₂O > CS₂ > C₂H₅OH CS₂ > H₂O > C₂H₅OH 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 0.33 0.19 0.67 0.40 0.33 0.19 0.67 0.40 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The atomic heat capacities of all solid elements __________ with decrease in temperature. Remains unchanged Approach zero at 0°C Decreases Increases Remains unchanged Approach zero at 0°C Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The latent heat of vaporisation Decreases with increased temperature Decreases as pressure increases Becomes zero at the critical point All of these Decreases with increased temperature Decreases as pressure increases Becomes zero at the critical point All of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will Increase four times Increase two times Be reduced to l/4th None of these Increase four times Increase two times Be reduced to l/4th None of these ANSWER DOWNLOAD EXAMIANS APP
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