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(a) What is required in chemical synthesis ? What will be done for that ? (b) Write Le-Chatelier's principle.

Answer» <html><body><p></p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/one-585732" style="font-weight:bold;" target="_blank" title="Click to know more about ONE">ONE</a> of the principal goals of chemical <a href="https://interviewquestions.tuteehub.com/tag/synthesis-658129" style="font-weight:bold;" target="_blank" title="Click to know more about SYNTHESIS">SYNTHESIS</a> is (i) to maximize the products (ii) minimizing the expenditure of energy. <br/>This implies maximum yield of products at mild temperature and pressure conditions. If it does not happen, then the experimental conditions need to be adjusted. For example, in the Haber process for the synthesis of ammonia from `N_2` and `H_2`, the choice of experimental conditions is of real economic importance. <br/>Equilibrium constant, `K_c` is independent of initial concentrations. But if a system at equilibrium is subjected to a change in the concentration of one or more of the reacting substances, then the system is no longer at equilibrium, and net <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a> takes place in some direction until the system returns to equilibrium once again. <br/> If a change in temperature or pressure of the system may also alter the equilibrium. <br/> In order to decide what course the reaction adopts and make a qualitative prediction about the effect of a change in conditions on equilibrium Le-Chatelier.s <a href="https://interviewquestions.tuteehub.com/tag/principle-1166255" style="font-weight:bold;" target="_blank" title="Click to know more about PRINCIPLE">PRINCIPLE</a> is used. <br/> Le-Chatelier.s principle: "Change in any of the factors that determine the equilibrium conditions of a system will cause the system to change in such a manner so as to reduce or to <a href="https://interviewquestions.tuteehub.com/tag/counteract-936808" style="font-weight:bold;" target="_blank" title="Click to know more about COUNTERACT">COUNTERACT</a> the effect of the change." This is applicable to all physical and chemical equilibria.</body></html>


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