Question

Assuming all volumes measured at the same temperature and pressure, state the volume ratio of the reactants and products when nitrogen reacting with oxygen to form nitrogen (III) oxide.

• A. 2 : 3: 2
• B. 1 : 3: 2
• C. 2 : 2: 2
• D. 2 : 3: 1

Answer 1

Answer: (A)

2 : 3: 2

The volume ratio of reactants and products involved in a reaction are in the ratio of their coefficient, assuming all volumes measured at the same temperature and pressure.

${2N}_2+{3O}_2\to 2N_2{O}_3$

Coefficient ratio $=2:3:2$

$\therefore$ Volume ratio $=2:3:2$