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Posted by on Monday, March 24, 2014 at 10:49pm.

Acetylene(C2H2) torches are used in welding.

How much heat (in kJ) evolves when 2.0L of C2H2 (d=1.0967kg/m3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is C2H2(g)+52O2(g)→2CO2(g)+H2O(l), ΔH∘=−1299.5kJ

  • Chemistry - , Monday, March 24, 2014 at 11:10pm

    Convert 2.0 L acetylene to grams using density.
    q = heat evolved = 1299.5 x (g C2H2/26) = ?

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