problem set 1

problem set 1 - various times Time/s 0 54 171 390 720 1010...

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Chem 107B Winter 2010 Ames 1 Problem Set 1 (due Fri Jan 15, 2010). 1. The diagram below shows the Maxwell speed distribution curves for an ideal gas at two different temperatures (T 1 and T 2 ). (a) Calculate the value of T 2 . (b) What is the most probable speed (c mp ) when the temperature is raised to 2700 K? 2. The progress of a reaction in the aqueous phase was monitored by the absorbance of a reactant at
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Unformatted text preview: various times: Time/s 0 54 171 390 720 1010 1190 Absorbance 1.67 1.51 1.24 0.847 0.478 0.301 0.216 (a) Make a plot of Absorbance vs. Time and determine the order of the reaction. (b) What is the rate constant? (c) What is the half-life (t 1/2 ) of the reaction? = ?...
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