Consider the following reactions at 25?C:
2 NO(g) <===> N2(g) + O2(g)
Kc: 1 × 10^30
2 H2O(g) <===> 2 H2(g) + O2(g)
Kc: 5 × 10^-82
2 CO(g) + O2(g) <===> 2 CO2(g)
Kc: 3 × 10^91
Which compound is most likely to dissociate and give O2(g) at 25?C?
1. CO2
2. H2O
3. CO
4. NO