Question

In the reaction $N_2+{3H}_2⟶{2H}_3$, ratio by volume of $N_2,H_2$ and ${NH}_3$ is $1:3:2$. This illustrates law of :

• A. definite proportions
• B. multiple proportions
• C. reciprocal proportions
• D. gaseous proportions

Answer 1

Answer: (D)

gaseous proportions

As per the Gay Lussac's law of combining volume of gases, the volumes of gaseous reactants and gaseous products bear a simple whole number ratio with each other if they are measured at same temperature and pressure.
In the reaction $N_2+{3H}_2⟶{2H}_3$, ratio by volume of $N_2,H_2$ and $N{H}_3$ is $1:3:2$. This illustrates law of Gay Lussac's law of combining volumes of gases.