Heat of Formation Use a standard enthalpies of formation table to determine the change in enthalpy for each of these reactions. a) NaOH(s) + HCl(g) → NaCl(s) + H₂O(g) b) 2 CO(g)+O2(g) > 2 CO2(g) c) CH4(g) +2 O02(g) → CO2(g) + 2 H₂O(1) d) 2 H₂S(g) + 3 O2(g) → 2 H₂O(1) +2 SO₂(g) e) 2 NO(g) + O2(g) → 2 NO2(g) Compound CH4(g) CO₂(g) NaCl(s) H₂O(1) H₂S(g) H₂SO4(1) MgSO4(s) MnO(s) MnO₂(s) NaCl(s) NaF(s) NaOH(s) NH3(g) CO (g) AH (kJ/mol) -74.8 -393.5 -411.0 -285.8 -20.1 -811.3 -1278.2 -384.9 -519.7 -411.0 -569.0 -426.7 -46.2 -110.5 Compound HCI(g) H₂O(g) SO₂(g) NH4Cl(s) NO(g) NO₂(g) SnCl4(1) SnO(s) SnO₂(s) SO₂(g) SO3(g) ZnO(s) ZnS(s) AH (kJ/mol) -92.3 -241.8 -296.1 -315.4 +90.4 +33.9 -545.2 -286.2 -580.7 -296.1 -395.2 -348.0 -202.9
Heat of Formation Use a standard enthalpies of formation table to determine the change in enthalpy for each of these reactions. a) NaOH(s) + HCl(g) → NaCl(s) + H₂O(g) b) 2 CO(g)+O2(g) > 2 CO2(g) c) CH4(g) +2 O02(g) → CO2(g) + 2 H₂O(1) d) 2 H₂S(g) + 3 O2(g) → 2 H₂O(1) +2 SO₂(g) e) 2 NO(g) + O2(g) → 2 NO2(g) Compound CH4(g) CO₂(g) NaCl(s) H₂O(1) H₂S(g) H₂SO4(1) MgSO4(s) MnO(s) MnO₂(s) NaCl(s) NaF(s) NaOH(s) NH3(g) CO (g) AH (kJ/mol) -74.8 -393.5 -411.0 -285.8 -20.1 -811.3 -1278.2 -384.9 -519.7 -411.0 -569.0 -426.7 -46.2 -110.5 Compound HCI(g) H₂O(g) SO₂(g) NH4Cl(s) NO(g) NO₂(g) SnCl4(1) SnO(s) SnO₂(s) SO₂(g) SO3(g) ZnO(s) ZnS(s) AH (kJ/mol) -92.3 -241.8 -296.1 -315.4 +90.4 +33.9 -545.2 -286.2 -580.7 -296.1 -395.2 -348.0 -202.9
Chapter6: Thermochemistry
Section: Chapter Questions
Problem 77E: Give the definition of the standard enthalpy of formation for a substance. Write separate reactions...
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Please answer super fast and super important please answer part d and c
Provide all steps please
Transcribed Image Text:Heat of Formation
Use a standard enthalpies of formation table to determine the change in enthalpy for each
of these reactions.
a) NaOH(s) + HCl(g) → NaCl(s) + H₂O(g)
b) 2 CO(g)+Oz(g) > 2 COz(g)
c) CH4(g) + 2 02(g) → CO2(g) + 2 H₂O(1)
d) 2 H₂S(g) + 3 O2(g) → 2 H₂O(1) +2 SO₂(g)
e) 2 NO(g) + O2(g) → 2 NO2(g)
Compound
CH4(g)
CO₂(g)
NaCl(s)
H₂O(1)
H₂S(g)
H₂SO4(1)
MgSO4(s)
MnO(s)
MnO₂ (s)
NaCl(s)
NaF(s)
NaOH(s)
NH3(g)
CO (g)
AHf (kJ/mol)
-74.8
-393.5
-411.0
-285.8
-20.1
-811.3
-1278.2
-384.9
-519.7
-411.0
-569.0
-426.7
-46.2
-110.5
Compound
HCI(g)
H₂O(g)
SO₂(g)
NH4Cl(s)
NO(g)
NO₂(g)
SnCl4(1)
SnO(s)
SnO₂(s)
SO₂(g)
SO3(g)
ZnO(s)
ZnS(s)
AH (kJ/mol)
-92.3
-241.8
-296.1
-315.4
+90.4
+33.9
-545.2
-286.2
-580.7
-296.1
-395.2
-348.0
-202.9
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