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 According to the following reactions, which oxide of nitrogen is the most stable at 298 K

A. 2N2 O5g2H2g+5O2g          K=1.2×1070     

B. 2N2 Og2N2g+O2g        K=3.5×1053

C. 2NO2gN2g+2O2g        K=6.7×1016

D. 2NOgN2g+O2g      K=1.2×1030

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