_ One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH‚Äö√á√ë + 2O‚Äö√á√á ‚Äö√ú√≠ CO‚Äö√á√á + 2H‚Äö√á√áO. Both the reactants and products are in gas phase. ≈í√ÆH¬¨‚àû298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about$?

_ One mole of methane undergoes complete combustion in a stoichiometri

1.	_ One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH‚Äö√á√ë + 2O‚Äö√á√á ‚Äö√ú√≠ CO‚Äö√á√á + 2H‚Äö√á√áO. Both the reactants and products are in gas phase. ≈í√ÆH¬¨‚àû298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about$?
A.	0.19
B.	0.33
C.	0.40
D.	0.67
Answer» B. 0.33