sunnye Posted July 21, 2008 Share Posted July 21, 2008 (edited) what does it mean to have a fractional order of reaction. like [H2]]1/2, does this means 1/2 moles of bromine is reacting with one mole of hydrogen? Edited July 21, 2008 by Phi for All disabled link to lookchem Link to comment Share on other sites More sharing options...
CaptainPanic Posted July 21, 2008 Share Posted July 21, 2008 [math] reaction rate = constant * [H2][br2]^{1/2} [/math] It means that you take the concentration of H2, multiply it by the square root of the concentration of Br2, and (optionally, but commonly) multiply it by a constant. The reaction is (probably): [ce]H2 + Br2 --> 2 HBr [/ce] So, you can see that 1 mole of H2 react with 1 mole of Br2, to form 2 moles of HBr. p.s. if you just have a question, you can just ask... no need to post other things (like about rubber or Kr)... some people ask, some give answers... but it's not a market where you must sell something before you can buy something Link to comment Share on other sites More sharing options...
John Cuthber Posted July 21, 2008 Share Posted July 21, 2008 Reaction orders are just what you measure. They are not under any obligation to be nice simple numbers. The molecularity of a reaction is another matter, a bimolecular reaction really must involve the reaction of two molecules. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now