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AP Chemistry/Unit 7: Equilibrium
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Haber Process Equilibrium Conditions

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For the synthesis of ammonia via the Haber process, a student proposes that the equilibrium yield of ammonia can be maximized by simultaneously increasing the pressure and decreasing the temperature. Which of the following statements correctly analyzes this strategy?

A

Increasing pressure and decreasing temperature have opposing effects on the equilibrium, canceling each other out.

B

Increasing pressure has no effect on the equilibrium position because the system will adjust to negate the change in conditions.

C

Increasing pressure favors the formation of ammonia due to fewer gas molecules on the product side, and decreasing temperature favors the exothermic forward reaction, both actions increasing ammonia yield.

D

Decreasing temperature will decrease the rate of reaction to such an extent that no ammonia is produced.

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