Question

When 4 L of nitrogen completely reacts with hydrogen, what would be the volume of ammonia gas formed?

Answer 1

Hint: Molar volume of any gas at STP is 22.4 L mol^-1

Step 1: Molar volume of any gas at STP is 22.4 L mol^-11

N₂ + 3H₂ ⇢ 2NH₃

1 mole 3 moles 2 moles

Step 2: When 22.4 L of N₂ reacts completely with hydrogen gas then 44.8 L of NH₃ gas is formed.

1 L of N₂ gas reacts completely to produce = 44.8/22.4 = 2 L of ammonia gas

Step 3: 4 L of N₂ gas reacts completely to produce 2 ✖ 4 L of NH₃ gas.

Final Answer:
When 4 L of nitrogen completely reacts with hydrogen, the 8 L of ammonia gas is formed.