The diagram shows the Haber process used to produce ammonia from nitrogen and hydrogen. What is the function of the heat exchanger?
- Ato cool the incoming gas mixture to avoid overheating the catalyst
- Bto cool the reaction products and separate the $\text{NH}_3$ from unused $\text{N}_2$ and $\text{H}_2$
- Cto warm the incoming gas mixture and shift the equilibrium to give more $\text{NH}_3$
- Dto warm the incoming gas mixture and speed up the reaction