Question

Ammonia synthesis by synthetic route requires a temperature of

100˚F

200˚F

400˚F

800˚F​

Answer 1

Answer:

This process requires high temperature (>400 °C) and pressure (>150 bar) in order to ensure fast kinetics and high conversions, respectively. 

Answer 2

Answer:

The correct answer is 800°F. Ammonia synthesis by synthetic route requires a high temperature which ranges between 400-700°C ( so 800F° is the closest option). Also, it requires a pressure of over 300atm.

This synthetic route is followed industrially with iron as the catalyst and requires high energy input. The elements hydrogen and nitrogen are initially interactive, therefore such high temperature and pressure are necessary.

This synthetic or industrial process of ammonia production is known as the Haber's process.