Problem: Evaluate the plausibility of the following reaction mechanism for: X + 2 Y → 2 Z when the reaction is observed to be second-order with respect to Y but increasing the concentration of X has no effect on the rate. Y + Y → 3 D + E     slow D + X → E               fast D + E → Z               fast D + E → Z               fast a. The mechanism is plausible b. Not plausible as the suggested rate law does not match the observed c. Not plausible as the elementary steps do not equal the overall reaction d. Not plausible as there are more than three elementary steps e. Not plausible as it describes a simultaneous collision of more than three chemicals

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Evaluate the plausibility of the following reaction mechanism for:

X + 2 Y → 2 Z

when the reaction is observed to be second-order with respect to Y but increasing the concentration of X has no effect on the rate.

Y + Y → 3 D + E     slow

D + X → E               fast

D + E → Z               fast

D + E → Z               fast

a. The mechanism is plausible

b. Not plausible as the suggested rate law does not match the observed

c. Not plausible as the elementary steps do not equal the overall reaction

d. Not plausible as there are more than three elementary steps

e. Not plausible as it describes a simultaneous collision of more than three chemicals

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Based on our data, we think this problem is relevant for Professor Ratliff's class at USF.