[单选题]
14.01g of nitrogen gasjrdobwge 1 f;2mo1 a,3.j2xm:n l:s(n(g khnl$(N_2)$ is reacted with excess $H_2$. What volume of ammonia $(NH_3)$gas would be produced at STP? The molar volume of a gas at STP is $22.7dm^3$.
$N_{2(g)}+3H_{2(g)}\rightarrow2NH_{3(g)}$
A. 11.4 $dm^3$
B. 22.7 $dm^3$
C. 34.1 $dm^3$
D. 45.4 $dm^3$
