Use Table 5.3 to calculate the enthalpy change for the com- bustion of 1 mol of ethanol: OH C2H5OH(1) + 3 O2(8) 2 CO2(8) + 3 H20(1) -

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TABLE 5.3 Standard Enthalpies of Formation, AH, at 298 K
Substance
Formula
AF, (kJ/mol)
Substance
Formula
AH, (kJ/mol)
Decom
to elements
Acetylene
tic C2H2(g)
226.7
Hydrogen chloride
HCl(g)
-92.30
vinsee
Ammonia
NH3(8)
-46.19
Hydrogen fluoride
HF(g)
-268.60
Benzene
C,H6(1)
49.0
Hydrogen iodide
HI(8)
25.9
Calcium carbonate
CACO3(s)
-1207.1
Methane
CH4(8)
-74.80
Methanol nieu
Propanesina
boewSilver chloride
to
Calcium oxide
CaO(s)
-635.5
CH3OH(1)
-238.6
Carbon dioxide
CO2(8)
-393.5
C3Hs(8)
-103.85
Carbon monoxide ordrad CO(g)isvHA lo -110.5
AgCl(s)
-127.0
Diamond oitoce00 C(s) vglsdino bisb 1.88 ar oisl Sodium bicarbonate
NaHCO3(s)
-947.7
Ethane
C2H6(8)
-84.68
Sodium carbonate
Na2CO3(s)
-1130.9
Ethanol
C2H;OH(1)
-277.7
Sodium chloride
NaCl(s)
-410.9
C2H4(8)E
Glucose w botebos e C6H12O6(S) d-lo-1273
Ethylene
52.30
Sucrose
C12H22O11(s)
-2221
nosu Water iTw 6) 9W
H2O(1)
-285.8
Hydrogen bromide
HBr(g)
-36.23
Water vaporriso
H2O(g)
-241.8
(e) + H()
Transcribed Image Text:TABLE 5.3 Standard Enthalpies of Formation, AH, at 298 K Substance Formula AF, (kJ/mol) Substance Formula AH, (kJ/mol) Decom to elements Acetylene tic C2H2(g) 226.7 Hydrogen chloride HCl(g) -92.30 vinsee Ammonia NH3(8) -46.19 Hydrogen fluoride HF(g) -268.60 Benzene C,H6(1) 49.0 Hydrogen iodide HI(8) 25.9 Calcium carbonate CACO3(s) -1207.1 Methane CH4(8) -74.80 Methanol nieu Propanesina boewSilver chloride to Calcium oxide CaO(s) -635.5 CH3OH(1) -238.6 Carbon dioxide CO2(8) -393.5 C3Hs(8) -103.85 Carbon monoxide ordrad CO(g)isvHA lo -110.5 AgCl(s) -127.0 Diamond oitoce00 C(s) vglsdino bisb 1.88 ar oisl Sodium bicarbonate NaHCO3(s) -947.7 Ethane C2H6(8) -84.68 Sodium carbonate Na2CO3(s) -1130.9 Ethanol C2H;OH(1) -277.7 Sodium chloride NaCl(s) -410.9 C2H4(8)E Glucose w botebos e C6H12O6(S) d-lo-1273 Ethylene 52.30 Sucrose C12H22O11(s) -2221 nosu Water iTw 6) 9W H2O(1) -285.8 Hydrogen bromide HBr(g) -36.23 Water vaporriso H2O(g) -241.8 (e) + H()
► Practice Exercise 2
am Use Table 5.3 to calculate the enthalpy change for the com-
bustion of 1 mol of ethanol:
tee of
C2H5OH(1) + 3 O2(g)
2 CO2(8) + 3 H20(1)
-
Transcribed Image Text:► Practice Exercise 2 am Use Table 5.3 to calculate the enthalpy change for the com- bustion of 1 mol of ethanol: tee of C2H5OH(1) + 3 O2(g) 2 CO2(8) + 3 H20(1) -
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