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4-1 - Version 237 Exam 4 — McCord T(53740 1 This...

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Unformatted text preview: Version 237 ._ Exam 4 — McCord T (53740) 1 This print-out should have 26 questions. 003 10.0 points Multiple—choice questions may continue 011 Calculate AG for the process the next column or page — find all choices He(g, 1 atm, 298 K) —+ He(g, 10 atm, 298 before answering. K) . ‘3 = 4.1 4 . i. .1. 1w] 8 J {115.70 kJ/mol E ‘11 1 L atn1:101.325 J “’ R, : 8.314J molK 2- *2-10 kJ/Df101 if" " I54 5 ‘ / g 3 m , .. 001 10.0 points 3' 3-50 kJ/11101 Given the standard heats of reaction Reac Efigl 1.de 1 ABC _ 4. 3.90 kJ/Inol M(s )+ 2X2(g) s MX4(g ) —98.7 kJ/mol 1 X203) is 2X(g ) 3&1; +2828 kJ/mol 5- ‘4-80 kJ/m‘) lVl(g) —> M(s) —20.1 kJ/mol 6. 2.10 kJ/Inol calculate the average bond energy for a single 7. —19.1 kJ/mol X bond. M1. 215.35 "91"? I. 2. 196.35 ”I; 8' 4‘80 kJ/mOI 3 3332 W I: h 004 10.0 points 1- 5 17? 85 ”:3 ”1;“ 1'}- For whic reactions 1,” @i 170 85 1'3 g"'13....10)28( )+ Hglg) T H202(l;) 7 168 35 :1. gr II) C(s, diamond) +02( (fl; 092g g) 8. 189.85 W; {3 1:65-‘0 III) N203) + 3F2(g) —> 32NF3(€) 9. 180.35 Li LEE» ”Mi; IV) C(s, graphite) +— :gOfl ) + H2(g)T 10. 193.35 11”“ Answer in units of kJ/rnol. 1:: 002(g) 'l' H20(g ) 3.1% V) 2Fe( (s) +— :02(g) a Fe203(s) 002‘ 10- 0 Points %Q)W0uld AHD — AHf? The temperature of a container of BF3 (gas? goes from 298 K to 373 K at a constant pres» 1. 1’ 1H and V only sure of 1.00 atrn when 6.24 kJ is added as heat. How many moles of BF3 does the container 2 fl an'é‘AIV only hold? You should treat BF3 ideally. '2‘ $3 5’ i“ 3. II IINarid IV only 1 2.50 mol . . . ,. T —. 1%? 1 13.111, III, IV and V only @333 mol 7.. _ 10 1 z j W 5. IV add V only 3. 2.86 mol ‘3‘ “ ‘8; .m 6. I and V onl 4. 1.50 mol 1443‘s 11 1" is i “E y in ;. 7. I and figonly 5. 4.00 mol . 1'1, 1 } MdA 133s, is, 1;, ~15 3a 8 I II IIIHV andV 6. 6.67 mol ' ...
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