The Haber process is an industrial process that converts nitrogen gas (N2) and hydrogen gas (H2) into ammonia (NH3) under high temperature and pressure conditions. The process is named after its inventor, Fritz Haber.
An increase in temperature in the Haber process will generally increase the rate of the reaction, as the kinetic energy of the reactant molecules increases, allowing them to collide more frequently and with more energy, increasing the chances of successful collisions and formation of products.
However, as the temperature increases, the equilibrium position of the reaction will shift towards the reactants side. This will decrease the yield of the desired product, ammonia.
Additionally, the high temperatures used in the Haber process can cause thermal decomposition of the ammonia, further reducing the yield of the desired product.
It's worth noting that, the Haber process is usually run at about 400-450°C and 200-250 atmospheres pressure, to reach an optimal yield and efficiency. Operating the process at a higher temperature than this range would decrease the efficiency and yield of the process.