AP Chemistryhardmcq1 pt
Zero-order kinetics are often observed for reactions on a solid surface. Why?
A.The surface becomes saturated with reactant
B.The temperature is absolute zero
C.Reactants never collide
D.The rate constant is zero
Explanation
Core Concept
When every active site is occupied, adding more reactant changes nothing — the rate plateaus, independent of concentration. That is zero-order behavior.
Correct Answer
AThe surface becomes saturated with reactant
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