ICSE Class 10 Answered

Dear Student,

According to Gay Lussac's Law, "The ratio between the volumes of the reactant gases and the gaseous products can be expressed in simple whole numbers," 

4NH₃ + 5O₂ → 4NO + 6H₂O

4 v     :    5v   →    4v   :  6v

The raio will remain the same whatever will be the volume taken of the reactants.

Hence,

since 4v of ammonia produces 4v of NO and 6v of water

so, 500 mL of ammonia will produce 500 mL of NO and 750 mL of water

The ratio of the products will be:

500 mL :  750 mL

i.e. 4v  :  6v or 2v : 3v