For the reaction $2N{H}_3\left(g\right)+H_{2}O\left(S\right)$    $H_{2}O\left(l\right)+N_2\left(g\right)+3H_2\left(g\right)$, $\Delta H=93.6kJmo{l}^{-1}$  .  Which of  the following does hold good 

The dissociation of  $N{H}_3$  is less favored at high temperature

The volume changes at constant temperature does not affect the equilibrium

The pressure changes at constant temperature does not affect the equilibrium constant

The dissociation of $N{H}_3$   is more favored at high temperature