PCHEM2 - Name _ ELS username _ CHM4411 EXAM #2 Distributed...

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Name _________________________________ ELS username ________________________ CHM4411 EXAM #2 Distributed 10/27/09 Instructions: Read the entire exam and put your name on all pages . Answer the following 7 problems on 4 pages in the context of the notation and conventions of our lectures. You may consult <10 kg of your own notes and textbooks; sharing is of any material or devices is not allowed. You may use any portable computation device that is not in any way networked . Report all numerical results to at least three significant figures (unless otherwise specified in the problem) for credit. Please work alone. R = 8.31447 J/(K . mol) = 0.0820574 (L . atm) / (K . mol) Your name on this exam states the assertion: I hereby pledge that I have neither given nor received unauthorized aid during this exam Problem#1 Unambiguously indicate whether each of the following statements is T rue or F alse ___ T ___ In water at 25 o C, the mobility of Li + is less than that of both Br - and H + . ___ T ___ The conductivity of an electrolyte solution increases with increasing concentration of the electrolyte. ___ F ___ According to the Debye-Hückel limiting law, the mean ionic activity coefficient of a dilute electrolyte solution, γ ± , is negative. ___ F ___ The equivalent conductivity of an electrolyte solution increases with increasing concentration of the electrolyte. ___ F
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PCHEM2 - Name _ ELS username _ CHM4411 EXAM #2 Distributed...

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