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Horvath Practice Problems 12

Horvath Practice Problems 12 - a 6 = b and C and D do not...

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2 DIFFERENTIAL RATE LAWS The Reaction Rate Consider the reaction aA + bB cC + dD. (2.1) We can monitor the rate of this reaction in a number of ways. We can watch either A or B disappear or we can watch either C or D appear. That is, we can monitor the derivative of the concentration of A, B, C or D with respect to time: d [ I ] dt , where [ I ] is the concentration of A, B , C or D . If we inspect the stoichiometry of the above reaction we see that a moles of A react with b moles of B to make c moles of C and d moles of D. Therefore A and B do not disappear at the same rate if
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Unformatted text preview: a 6 = b and C and D do not appear at the same rate if c 6 = d. But, since the stoichiometry is f xed for a given reaction, one can easily adjust the derivative of the concentration with re-spect to time to give a reaction rate, v, that is consistent re-gardless of which reactant or product is monitored. The rate (or velocity) of a reaction is v = 1 ν I d [ I ] dt , (2.2) DIFFERENTIAL RATE LAWS 11...
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