CHEM 6B midterm solutions 1

CHEM 6B midterm solutions 1 - Chemistry 68: General...

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Chemistry 68: General Chemistry 1 Uli MOiler University of California, San Diego, Winter 2010 SOLU. TIC? IVS First Midterm exam - 26th January 2010 maximum score: 56 points Student name (print): ______________ Student 10: __________________ If you have a question, quietly raise your hand and wait until a TA is at your place. If you need more space, continue to write on the back of the paper. Problem 1 (5 points): What is the heat capacity for the gas N2, in a reaction at constant pressure? List the value and the all contributions to that heat capacity. epe tJ l ) = I RCD 3 R [OIT ~ f ,0. (LS ~J" oncJ. ()'It? ~(l'Lt(l -G CD ~ R [0. 2 ro!a-,ho~ ,,,,-,,V«(>U{)+' (j) ~ R [ov ,£""PC<(\'3>iO." GVork. (]) Problem 2 (6 points): You dissolve 4 g of NaOH in 100 mL water at 20°C. What is the temperature of the solution after all NaOH is dissolved? After dissolving the NaOH, 0.9 g of the water evaporate. What is the temperature of the solution after the water evaporated? f1H(solv, NaOH) = - 44.5 kJ/mol. Cs(H2
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This note was uploaded on 11/27/2011 for the course CHEM 6B taught by Professor Crowell during the Winter '08 term at UCSD.

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CHEM 6B midterm solutions 1 - Chemistry 68: General...

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