Horvath Practice Problems 20

Horvath Practice Problems 20 - reactants in an el-ementary...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
4I N T E G R A T E D R A T E L A W S The previous lecture dealt with di f erential rate laws look di- rectly at the rate law which is a di f erential equation .T h e di f erential equation is not solved. We now solve the di f erential equations to yield what are called the integrated rate law . The di f erential equations (rate law) and their solutions (inte- grated rate law) are simply listed here for a few rate laws. type rate law a ) integrated rate law a ) 1 st order 1 ν i d [ I ] dt = k [ I ][ I ]=[ I 0 ] e ν i kt 2 nd order 1 ν i d [ I ] dt = k [ I ] 2 1 [ I ] = 1 [ I 0 ] ν i kt n th order b ) 1 ν i d [ I ] dt = k [ I ] n 1 [ I ] n 1 = 1 [ I 0 ] n 1 ( n 1) ν i kt enyzme 1 ν i d [ I ] dt = k [ I ] k m +[ I ] k m ln [ I 0 ] [ I ] +([ I 0 ] [ I ]) = ν i kt a ) [ I ] is the concentration of one of the
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: reactants in an el-ementary reaction and i is the stoichiometric factor for [ I ] (n.b., i is a negative number). b ) The order need not be an integer. For example n = 3 / 2 is a three-halves order rate law. Linearizing the integrated rate laws We see from the table above that the integrated rate law for f rst order behavior is [ I ] = [ I ] e i kt , (4.1) which is of the form of an exponential. INTEGRATED RATE LAWS 19...
View Full Document

Ask a homework question - tutors are online