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

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Solution

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 N₂reacts completely with hydrogen gas then 44.8 L of NH₃gas is formed.
1 L of N₂gas reacts completely to produce = 44.8/22.4 = 2 L of ammonia gas
Step 3: 4 L of N₂gas reacts completely to produce 2 ✖ 4 L of NH₃gas.
Final Answer:
When 4 L of nitrogen completely reacts with hydrogen, the 8 L of ammonia gas is formed.

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