Question

Nitrogen (N2) and hydrogen (H2) react to form ammonia (NH3). Consider a mixture of six nitrogen molecules and six hydrogen molecules in a closed container. Assuming the reaction goes to completion, what will the final product mixture be?
A. number of NH3 molecules
B. number of N2 molecules
C. number of H2 molecules

Which of the following equations best represents this reaction?

A. 42 N2 + 6 H2 4 NH3
B. 6 N2 + 6 H2 4 NH3 + 4 N2
C. N + 3 H2 NH3
D. N2 + 3 H2 2 NH3
E. N2 + H2 NH3

Answer 1

Answer:

Answers are given below.

Explanation:

Balanced reaction:

$N_{2}+3H_{2}\rightarrow 2NH_{3}$

So, 3 molecules of $H_{2}$ react completely with 1 molecule of $N_{2}$ and produce 2 molecules of $NH_{3}$.

Hence, 6 molecules of $H_{2}$ react completely with $\frac{6}{3}$ or 2 molecules of $N_{2}$ and produce $(\frac{2}{3}\times 6)$ or 4 molecules of $NH_{3}$

(A) number of $NH_{3}$ molecules = 4

(B) number of $N_{2}$ molecules = (6-2) =4

(C) number of $H_{2}$ molecules = (6-6) =  0

Equation (D) represents best this reaction.