L. Using Table 1, calculate AH for each of the following reactions. Tell if each is exothermic or endothermic.

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Chapter1: Chemical Foundations
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AH ( kcal/mol)
Compound
H:0(g)
AH (kl/mol)
-57.8
-242
H20(1)
-68.3
-285
NO(g)
NO:(R)
21.5
89.9
8.0
33.4
NH3(g)
-11.0
-46.0
NH.NO (8)
HNO (aq)
SO:(g)
So (8)
H;S0.(aq)
-87.3
-365
-41.4
-173
-71.0
-297
-94.5
-395
-217
-907
CO(g)
-26.4
-110
CO:(g)
CH,OH(g)
C2HzzO1(s)
-94.1
-393
-57.0
-238
-530
-2215
C;Ha(g)
C;Ha(g)
C;Ho(g)
54.2
227
12.5
52.2
-20.2
-84.4
Heat of Formation of Some Common
Substances, at 25 °C and 1 atm
Transcribed Image Text:AH ( kcal/mol) Compound H:0(g) AH (kl/mol) -57.8 -242 H20(1) -68.3 -285 NO(g) NO:(R) 21.5 89.9 8.0 33.4 NH3(g) -11.0 -46.0 NH.NO (8) HNO (aq) SO:(g) So (8) H;S0.(aq) -87.3 -365 -41.4 -173 -71.0 -297 -94.5 -395 -217 -907 CO(g) -26.4 -110 CO:(g) CH,OH(g) C2HzzO1(s) -94.1 -393 -57.0 -238 -530 -2215 C;Ha(g) C;Ha(g) C;Ho(g) 54.2 227 12.5 52.2 -20.2 -84.4 Heat of Formation of Some Common Substances, at 25 °C and 1 atm
L.Using Table 1, calculate AH for each of the following reactions. Tell if each is exothermic or
endothermic.
d. 2 CH;OH(1) + 3 0:(g) 2 CO:(g) + 4 H;0(g)
e. 2 SO:(g) • 0:(g) 2 S0,(g)
E 2 CH(g) 3 0:(g)
)
→ 2 CO:(g) + 2 H;0(g)
Transcribed Image Text:L.Using Table 1, calculate AH for each of the following reactions. Tell if each is exothermic or endothermic. d. 2 CH;OH(1) + 3 0:(g) 2 CO:(g) + 4 H;0(g) e. 2 SO:(g) • 0:(g) 2 S0,(g) E 2 CH(g) 3 0:(g) ) → 2 CO:(g) + 2 H;0(g)
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