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Missing value for a standard enthalpy of combustion watch

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    There's a value missing on a homework worksheet I've been given. What's the standard enthalpy of combustion of N2 (g), please? I've Googled it and not found an answer.
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    You're looking for the enthalpy change for:
    \mathrm{N_2 + 2O_2 \longrightarrow 2NO_2}
    The standard enthalpy of formation of NO2 is given on Wikipedia and is:
    \mathrm{\frac{1}{2}N_2 + O_2 \longrightarrow NO_2}
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    (Original post by Zygroth)
    You're looking for the enthalpy change for:
    \mathrm{N_2 + 2O_2 \longrightarrow 2NO_2}
    The standard enthalpy of formation of NO2 is given on Wikipedia and is:
    \mathrm{\frac{1}{2}N_2 + O_2 \longrightarrow NO_2}
    Aaah...I last did all this a year ago so I'm REALLY rusty, the value of formation for NO2 might be on the sheet *facepalm*

    Silly me! Ta!
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    (Original post by monkee)
    Aaah...I last did all this a year ago so I'm REALLY rusty, the value of formation for NO2 might be on the sheet *facepalm*

    Silly me! Ta!
    you won't see it quoted as the combustion of nitrogen for the simple reason that nitrogen does not burn in air or oxygen.
 
 
 
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