The temperature chosen is a compromise between yield and rate. Using a catalyst in the Haber process means that a lower temperature can be used whilst keeping the rate of reaction high.

More than half of the protein within our body can be directly traced to a process invented more than 100 years ago by two ...

Iron is a catalyst for the reaction. It increases the rate of the reaction without being used up in the reaction.

Nitrogen gas (N2) is one of the most abundant yet highly stable gases in the Earth's atmosphere. Its N≡N triple bond has an ...