# Which of the carbon oxides is the product of complete combustion of coal.

Which of the carbon oxides is the product of complete combustion of coal. Calculate how much oxygen is theoretically required for the complete combustion of 1 ton of coal.

1. Complete combustion is considered to lead to the production of carbon monoxide in the highest oxidation state, that is, carbon dioxide:

C + O2 = CO2;

2.For the convenience of calculations, let’s move from tons to grams:

1 t = 1000 kg = 10 ^ 6 g;

3.n (C) = m (C): Mr (C);

n (C) = 106: 12 = 8.3 * 10 ^ 4 mol;

n (O2) = n (C) = 8.3 * 10 ^ 4 mol;

4. V (O2) = n (O2) * Vm;

V (O2) = 8.3 * 10 ^ 4 * 22.4 = 185.92 * 10 ^ 4 = 1.86 * 10 ^ 6 dm3 = 1.86 * 10 ^ 3 m3.

Answer: 1.86 * 10 ^ 3 m3.

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