The Haber process used to produce ammonia is carried out at a temperature of $450\,^{\circ}\text{C}$ and a pressure of $200$ atmospheres in the presence of a catalyst. Which statement is not correct?
- ALowering the pressure increases the rate at which ammonia is produced.
- BLowering the temperature slows down the rate at which ammonia is produced.
- CMaintaining a very high pressure is very difficult and needs expensive equipment.
- DThe reaction is a reversible reaction which can proceed forwards and backwards.