Andrew Harvey

Contextual Outline: 9.4 CHEMICAL MONITORING AND MANAGEMENT 9.4.2 ?????????????????? The aim of the Haber falsify for is to farm ammonium hydroxide. So to unsex the closely ammonia we essential the equilibrium to be pushed lots to the near to get lots of ammonia. To do this we can do several(prenominal) things, the first base is to decrease the temperature of the system. Decreasing the temperature bequeath rigorous that, due to Le Chateliers principal, the equilibrium go forth shift to the right to produce more(prenominal) heat, to minimise the effect of the change, unless in the process will produce more yield, more NH3. However in dot point 5 we apothegm that the lower the temperature the drawn-out the place of answer and so at low temperatures although the proportionality of NH3 produced to N2 and H2 produce is quite high, due to the pokey chemical reaction enjoin at these temperatures, the rate that all products are produced is quite low. So in a ctuality not much NH3 is produced. to a fault the higher the pull the more yield, precisely the higher the gouge the slower the reaction rate, because the particles cant move around as much. Also high pressures make it harder to maintain the equipment. Fig. 52 The diagram below shows the reaction curves for vary factors. A change in temperature, also changes the rate of the reaction, which scales the graph along the time axis.

high med low temp incumbrance to Le Chateliers Principle, a change in temperature, volume, ingress or pressure will change the height of this. Fig. 53 8. beg off that the use of a catalyst will lower the reaction temperature required and ide ntify the catalyst(s) utilize in the Haber ! process The catalyst used is iron oxide. This lowers the activation temperature that is postulate to start the reaction. 9. analyse the advert of increased pressure on the system involved in the Haber process Increased pressure on the system involved in the Haber process will put more stress on the pipes. The pipes will get hold of to be thicker to withstand the higher pressures....If you want to get a full essay, order it on our website: OrderEssay.net

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