Which of the following oxides of nitrogen will be the most stable one

  • A

    $2N{O_2}(g)$ $ \rightleftharpoons $ ${N_2}(g) + 2{O_2}(g)$;   $K = 6.7 \times {10^{16}}\,mol\,{l^{ - 1}}$

  • B

    $2NO(g)$ $ \rightleftharpoons $ ${N_2}(g) + {O_2}(g)$;    $K = 2.2 \times {10^{30}}\,mol\,{l^{ - 1}}$

  • C

    $2{N_2}{O_5}(g)$ $ \rightleftharpoons $ $2{N_2}(g) + 5{O_2}(g)$ ;    $K = 1.2 \times {10^{34}}\,mol\,{l^{ - 5}}$

  • D

    $2{N_2}O(g)$ $ \rightleftharpoons $ $2{N_2}(g) + {O_2}(g)$;     $K = 3.5 \times {10^{33}}\,mol\,litr{e^{ - 1}}$

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