lec1_2011

# lec1_2011 - Intro Lab Schedule for winter 2011 Monday...

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Intro Lab Schedule for winter 2011 Monday sections : Sections 51 and 52 - Monday, January 7 @ 2:30 p.m. Sections 55 and 56 - Monday, January 7 @ 3:15 p.m. Tuesday sections Sections 53 and 54 - Tuesday, January 8 @ 2:30 p.m. Sections 57 and 58 - Tuesday, January 8 @ 3:15 p.m. Please be prepared to submit your safety quiz and student contract during your introductory lab. Students should read over and be familiar with the content regarding attendance and laboratory reports.

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Chapter 7: Chemical Equilibrium
7.1 The Gibbs energy minimum 1. Extent of reaction ( ξ ): The amount of reactants being converted to products. Its unit is mole. Consider: A B Assume an infinitesimal amount dξ of A turns into B, d n A = -dξ On the other hand, d n B = dξ Why do we need a new quantity? consider a generic reaction: 2A 3B In a very general way, the extent of reaction is calculated as dξ = d n A / v A (where v A is the stoichiometric number of the reactant A, which is negative for the reactant!!)

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Example 1: N 2 (g) + 3H 2 (g) 2NH 3 (g) when the extent of reaction changes from ξ = 0 to ξ = 1.0 mole, what are the changes of each reagent? Solution: identify v j : v(N 2 ) = -1; v(H 2 ) = -3; v(NH 3 ) = 2. since dξ = 1.0 mole,
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## This note was uploaded on 02/14/2011 for the course SCIENCE 321 taught by Professor Aaa during the Spring '11 term at Windsor.

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lec1_2011 - Intro Lab Schedule for winter 2011 Monday...

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