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21 June, 13:25

Methane, the principal component of natural gas, is used for heating and cooking. The combustion process is CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H2O (l) If 15.9 moles of CH4 react with oxygen, what is the volume of CO2 (in liters) produced at 23.7°C and 0.985 atm?

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  1. 21 June, 13:37
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    392.97 litres

    Explanation:

    From the equation of reaction, we can see that 1 mole of methane yielded 1 mole of carbon iv oxide. Hence, 15.9 moles of methane will yield 15.9 moles of carbon iv oxide.

    At s. t. p one mole of a gas occupies a volume of 22.4L, hence 15.9 moles of a gas will occupy a volume of 22.4 * 15.9 which equals

    356.16L.

    Now, we can use the general gas equation to get the volume produced at the values given.

    We have the following values;

    V1 = 356.16L P1 = 1 atm (standard pressure) T1 = 273K (standard temperature) V2 = ? T2 = 23.7 + 273 = 296.7K P2 = 0.985 atm

    The general form of the general gas equation is given as:

    (P1V1) T1 = (P2V2) / T2

    After substituting the values, we get V2 to be 392.97Litres
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