Temperature for maximum yield at an appropriate reaction rate is
Correct answer: D. 400 C
- A. 200 C
- B. 250 C
- C. 450 C
- D. 400 C
Explanation
Haber process and Contact process should be taken into account. Both reactions are exothermic so as temperature increases the yield decreases despite of rate increasing. At low temperatures yield will increase but rate will be very slow. In these processes a compromise temperature is chosen. 400 degree celcius is the suitable option. Factual statement found in federal textbook.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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