bugging reaction order question....

[baywatch123]

basically it says to find the reaction order in respect to A.... when you have values like these they say to create a hypothetical line 4 ... (attached file: reaction 2).... could someone help clarify this?

Thanks!!

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[baywatch123]

anyone?

 

[sshar43]

Well, I believe I would approach this problem like this, though somebody please correct me if I'm wrong:

For the reaction order with respect to B using trials 1 and 2:
(2)^x = 4
So x = 2, meaning it's second order with respect to B

For the reaction order with respect to A using trials 2 and 3:
(2)^y * (2)^2 = 4
So y = 0

So I would suspect that the reaction is a 0 order with respect to A. Was that what the solution set said or does it say something different? I haven't heard of the 4th line method but this seemed to work for me