A chemical plant produces ammonia using the following reaction at a very high temperature and pressure. Which design issue is most likely to arise as a result of these conditions? 3H2 + N2 2NH3 + energy A. The high temperature and pressure will favor the formation of the reactants. B. The reaction will stop at a very high temperature and pressure C. The process will be worse for the environment because it will generate more waste products. D. The equipment needed to accommodate the high temperature and pressure will be expensive to produce.

D. The equipment needed to accommodate the high temperature and pressure will be expensive to produce.

Explanation:

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In this case, for the considered reaction, it is clear it is an exothermic reaction because it produces energy; and therefore, the higher the temperature the more reactants are yielded as the reverse reaction is favored. Moreover, since the effect of pressure is verified as favoring the side with fewer moles; in this case the products side (2 moles of ammonia).

In such a way, the high pressure favors the formation of ammonia whereas the high temperature the formation of hydrogen and nitrogen and therefore, option A is ruled out. Since the high pressure shifts the reaction rightwards and the high temperature leftwards, we would not be able to know whether the reaction has ended or not because it will be a "go and come back" process, that is why B is also discarded. Now, since hydrogen and nitrogen would be the "wastes", we discard C because they are not toxic. That is why the most accurate answer would be D. because it is actually true that such equipment is quite expensive.

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