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Which process occurs inside a Haber-Bosch reactor when the catalyst surface area becomes significantly reduced due to poisoning?

A)Equilibrium shift favoring reactants
B)Increased ammonia production rate
C)Decreased activation energy barrier
D)Selective adsorption of hydrogen

💡 Explanation

When the catalyst surface area decreases via poisoning, reaction rate decreases disproportionately due to diminished active sites; therefore equilibrium shifts to favor the reactants by Le Chatelier's principle. As less product is formed, the equilibrium will compensate to produce less product resulting equilibrium shift favoring reactants which minimizes ammonia production, rather than acceleration or adsorption effects which require active catalysis.

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