Chemistry, asked by anmoltanejaboy, 10 months ago

If we add poison (arsenic, CO) to negative catalyst ,what will happen to the speed to reaction? Will it increase, decrease or remain normal?

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Answered by Anonymous

Answer:

In summary, deactivation of supported metals by carbon or coke may occur chemically due to chemisorption or carbide formation or physically due to blocking of surface sites, metal crystallite encapsulation, plugging of pores, and destruction of catalyst pellets by carbon filaments

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