Chem Test 2 pg. 5 - CHEM 202/202H Dr Cummings Name Exam 2...

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Unformatted text preview: CHEM 202/202H Dr. Cummings Name Exam 2: March 19, 2008 Section 11: Short Answer. Briefly answer the following questions (a few sentences or equations should be sufficient for each answer). i l. Exactiy 1.5 g of fuel is burned under conditions of constant pressure. The experiment W was reproduced with the same amount of fuel under conditions of constant volume. In i’) measurement A, the reaction produces 25.9 M of heat; in measurement B, the reaction produces 234 id of heat. Which measurement (A or B) was taken at constant pressure and which measurement (A or B) was taken at constant volume. Rationalize your answer. (5 points) .mmwwmwwmwwmmwmnmamnw. A “1 czmxshmr W*\ «m. .L. .. :1 (“:3 "PC“; r“ {/owt’sr‘txxflt, “\[G‘LUu/méi J on «e i") [N x» _ . 4W . . 3. , s N ’3 ”:4- " (/0 r” (LAC? \f\_s:;‘<;:ctm L :3 was we rt? ) A}: b (‘0 i “3) C911; <3 me, 4am 645?} ED is. us (301 (as; "P \/ Vi} CW iii) <§sirice “\V’lt‘i. ”intuit (Lat: Wt mgr ‘V’C iii“? 550‘ W”? i“ \‘DOR it C06; {3 E} j, ion (Nfi \a emfi’ (“:2 S ,~ '“1 i4} ) \ S; Nil (€518 (it-“i (XIV QKRWES "tr/int “\iO\ ‘vi W1 et’ am at m at is co n5; \"zrz‘fl‘i' \3 t, '23 ,i‘” MU 12. Biological systems take energy from the surroundings in order to synthesize large and complex molecules. Considering the 2”" law of thermodynamics, how is this possible? (5 6:3”! points) ‘ [£35 WAN ‘53 [:L‘Cb $3.3 “i" {SSSGWV / Ci} Start” to ; (fix *‘ :",w::<2k..§ as: been £3$$UVF \“t/ttxtS a" ALE; «this: a. ,3 new ”We WW: . m g "N i I, _, ’ m Ml \Y‘xCQYI'iLC/LQQ Latte: rs \Aefifir rm «1 “Sift/i \vkj \_. wet earn “299%; Y3 W («Q 3 3> 5 $3 Page 5 of6 ...
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