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Q.

The combustion of 1.00 mole of methane, CH4 produces carbon dioxide and water and release 802kJ×mol−1 . When 3.00 mol of oxygen reacts with a stoichiometric quantity of methane, what is Ml for the reaction?

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a

−8.02×102kJ

b

1.20×103kJ

c

−1.20×103kJ

d

8.02×102kJ

answer is A.

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Detailed Solution

In the reaction we have,

CH4+2O2⟶CO2+2H2OΔH=(−)8022×3=−1.2×103kJ

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