Explain why cooling allows ammonia to liquefy and be removed from the reaction mixture. (Chemistry only)

In the Haber process, ammonia (NH₃) is produced from nitrogen (N₂) and hydrogen (H₂) gases under high temperature and pressure. Cooling the reaction mixture is crucial because it reduces the temperature of the gases, allowing ammonia to condense into a liquid. This phase change occurs because the intermolecular forces in ammonia become significant at lower temperatures, enabling it to transition from a gaseous state to a liquid state. The liquefied ammonia can then be easily separated from unreacted gases, facilitating efficient recycling of nitrogen and hydrogen back into the process.