The rate expression determined only experimentally

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: not be memorized, but easily derived from the appropriate rate expression). • The rate expression, determined only experimentally, need not be a simple one, i.e., it need not contain whole numbers, or positive numbers for that matter although this is often the case. • In general, given the rate as a function of concentration, reaction order can be determined as follows: • If only one reactant is involved, since rate = k [conc.]n, find the ratio of the rates at two different concentrations and apply the relation: n rate2 ⎛ [conc 2 ] ⎞ ⎟ ; n is the reaction order. =⎜ ⎜ ⎟ rate1 ⎝ [conc1 ] ⎠ • If two reactants, A and B, are involved, rate = k [A]m [B]n: • Find the ratio of the rates when [B] is constant but [A] changes. Using the equation above, find the order with respect to A. • Repeat the process when [A] is constant but [B] changes to determine the order with respect to B. Orders...
View Full Document

This note was uploaded on 09/23/2010 for the course CS 001 taught by Professor Jix during the Spring '10 term at Riverside Community College.

Ask a homework question - tutors are online