Question

After passing over a catalyst, the mixture of gases contain nitrogen, hydrogen and ammonia. Explain why hydrogen and nitrogen are present in the mixture?​

Answer 1

Answer:

Ammonia is easily liquefied under pressure as long as it isn't too hot, and so the temperature of the mixture is lowered enough for the ammonia to turn to a liquid. The nitrogen and hydrogen remain as gases even under these high pressures, and can be recycled.