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The Rice-Herzfeld mechanism for the thermal decomposition of acetaldehyde (CH3CO) is the following below (10 points)

(1) CH3CHO ---> CH3. + CHO.

(2) CH3. + CH3CHO ---> CH4 + CH2CHO.

(3) CH2CHO. --->CO + CH3.

(4) CH3. + CH3. --->C2H6

The overall reaction is CH3CHO ---> CH4 + CO + C2H (small traces of ethane) Determine the rate law for each step if that step was the rate-determining step.

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