One mole of methane undergoes complete combustion in a stoichiometric – McqOptions

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1.	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
A.	0.19
B.	0.33
C.	0.4
D.	0.67
Answer» B. 0.33

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