In an experiment to determine the rate law for the decomposition of acetaldehyde, after collecting her data, a student plot three graphs(see attached image): [acetaldehyde] vs. time, In [acetaldehyde] vs. time and 1/[acetaldehyde] vs. time. Her graphs at 427°C are: 1. Based on these, what is the order of the reaction with respect to [acetaldehyde]? Briefly explain.

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