Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and, as of 20 April 2021 (Eastern Time), the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

# Find the order of the reaction given initial rates and concentration. ?

** There is a typo on the photo, the third [A] (M) is actually 0.400 , not 0.053***

The answer choices are

n = 0

n = 0.5

n = 1

n = 3

Please explain how to solve. ### 2 Answers

Relevance
• Favourite answer

The reaction is 0 order.

If it were anything else, you would expect to see a much greater change in the rate of the reaction than is seen.

The rate law for this reaction would be: Rate = k[A]^n

Rate 3/Rate 1 = 0.054/0.052 = (0.4/0.2)^n

1.04 = 2^n

n = 0

• Anonymous
1 month ago

The answer:  n = 0

The reaction is zeroth-order because the initial rate is constant when [A] varies.  This means that the initial rate is independent of [A].  The slight variation  in initial rate (0.052, 0.053 and 0.054 M/s) is due to acceptable experimental error.

Still have questions? Get answers by asking now.