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For the zero order reaction A -> products, the data are: Time (min): 0.0, [A] = 0.10 M Time (min): 1.0, [A] = 0.09 M Time (min): 2.0, [A] = 0.08 M Calculate the rate constant k in M min⁻¹.

1. 0.01
2. 0.02
3. 0.03
4. 0.04

Correct answer: 0.01

Solution

For zero order, k = -(d[A]/dt) = (0.10 - 0.09)/1.0 = 0.01 M min⁻¹, consistent across all intervals.

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