When CO(g) reacts with O2(g) according to the following reaction, 283 kJ of energy are evolved for each mole of CO(g) that reacts. Complete the following thermochemical equation. 2CO(g) + O2(g)2CO2(g) H = kJ

2CO + O₂    →  2CO₂     ΔH = -566 kj

Explanation:

Given data:

Energy evolved when 1 mole of CO react = 283 Kj

Energy evolved when 2 mole of CO react = ?

Solution:

Chemical equation:

2CO + O₂    →  2CO₂    

It is given when one mole of CO react with oxygen 283 KJ energy is produced.

When 2 mole react,

2 ×-283 kj = -566 kj

Thermal equation:

2CO + O₂    →  2CO₂     ΔH = -566 kj

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