Question

List I and List II contains four entries each. Entries of List I are to be matched some entries of List II. One or more than one entries of List I may have the match with the same entry of List II.

Answer 1

$N_2\left(g\right)+{3H}_2\left(g\right)\rightleftharpoons {2NH}_3\left(g\right);\Delta H=-ve$ is an exothermic reaction so K increases with decrease in temperature.
$N_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2NO\left(g\right);\Delta H=+ve$ as here energy is absorbed so K
increases with increase in temperature. also no. of molecules are same in both side so P has no effect.