A sealed vessel contains 4 molecules of and 3 molecules of

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

A sealed vessel contains 4 molecules of

\text{NO}(g)

and 3 molecules of

\text{O}_2(g)

. The reaction proceeds according to the equation

2\text{NO}(g)+\text{O}_2(g)\rightarrow 2\text{NO}_2(g)

. Assuming the reaction goes to completion and no side reactions occur, what is the maximum number of

\text{NO}_2

molecules that can be formed? (a)

6

(b)

4

(c)

3

(d)

2