MISSED THIS? Watch KCV 9.10, IWE 9.11; Read Section 9.10. You can click on the Review link to access the section in your eText. Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C. Substance AH (kJ/mol) Substance AH (kJ/mol) Substance AH (kJ/mol) Al(g) HCl(aq) NF3 (8) Al₂O3(s) Cr(g) NH3(g) F(g) C(g) NH3(aq) CH4 (g) C₂H₂(g) C₂H₁ (g) C₂H6 (g) CO(g) CO₂(g) Cl(g) HCl(g) 330.0 -1675.7 716.7 -74.6 227.4 52.4 -84.68 -110.5 -393.5 121.3 -92.3 HF (g) HF (aq) H(g) Fe(g) FeO(s) Fe₂O3(s) Fe3O4(s) N(g) -167.2 396.6 79.38 -273.3 -335.0 218.0 416.3 -272.0 -824.2 -1118.4 472.7 O(g) 03(g) S(g) SO₂(g) SO3(g) Sn(g) SnO(s) SnO₂ (s) -132.1 -45.9 -80.29 249.2 142.7 277.2 -296.8 -395.7 301.2 -280.7 -577.6 ▼ 2C (s) + H₂ (g) →C₂H₂ (8) Submit ✓ Correct C₂H₂(g) is composed of elements C and H. In their standard states, C exists as a monatomic solid and H exists as a diatomic gas. Thus, the formation of 1 mol of C₂ H₂(g) is expressed by the following chemical equation: 2C(s) + H₂(g) → C₂H₂(g) Part H Previous Answers Find AH; for C₂H₂ (g) from the given table. Express your answer in kilojoules per mole to one decimal place. AH; Submit VO ΑΣΦ Request Answer ? kJ/mol
MISSED THIS? Watch KCV 9.10, IWE 9.11; Read Section 9.10. You can click on the Review link to access the section in your eText. Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C. Substance AH (kJ/mol) Substance AH (kJ/mol) Substance AH (kJ/mol) Al(g) HCl(aq) NF3 (8) Al₂O3(s) Cr(g) NH3(g) F(g) C(g) NH3(aq) CH4 (g) C₂H₂(g) C₂H₁ (g) C₂H6 (g) CO(g) CO₂(g) Cl(g) HCl(g) 330.0 -1675.7 716.7 -74.6 227.4 52.4 -84.68 -110.5 -393.5 121.3 -92.3 HF (g) HF (aq) H(g) Fe(g) FeO(s) Fe₂O3(s) Fe3O4(s) N(g) -167.2 396.6 79.38 -273.3 -335.0 218.0 416.3 -272.0 -824.2 -1118.4 472.7 O(g) 03(g) S(g) SO₂(g) SO3(g) Sn(g) SnO(s) SnO₂ (s) -132.1 -45.9 -80.29 249.2 142.7 277.2 -296.8 -395.7 301.2 -280.7 -577.6 ▼ 2C (s) + H₂ (g) →C₂H₂ (8) Submit ✓ Correct C₂H₂(g) is composed of elements C and H. In their standard states, C exists as a monatomic solid and H exists as a diatomic gas. Thus, the formation of 1 mol of C₂ H₂(g) is expressed by the following chemical equation: 2C(s) + H₂(g) → C₂H₂(g) Part H Previous Answers Find AH; for C₂H₂ (g) from the given table. Express your answer in kilojoules per mole to one decimal place. AH; Submit VO ΑΣΦ Request Answer ? kJ/mol
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:MISSED THIS? Watch KCV 9.10, IWE 9.11; Read Section 9.10. You can click on the Review link to
access the section in your eText.
Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C.
Substance AH (kJ/mol) Substance AH (kJ/mol) Substance AH (kJ/mol)
Al(g)
Al2O3(s)
C(g)
CH4 (g)
C₂ H₂(g)
C₂H4 (g)
C₂H6 (g)
CO(g)
CO₂(g)
Cl(g)
HCl(g)
330.0
-1675.7
716.7
-74.6
227.4
52.4
-84.68
-110.5
-393.5
121.3
-92.3
HCl(aq)
Cr(g)
F(g)
HF (g)
HF (aq)
H(g)
Fe(g)
FeO(s)
Fe₂O3(s)
Fe3O4(s)
N(g)
-167.2
396.6
79.38
-273.3
-335.0
218.0
416.3
-272.0
-824.2
-M18.4
472.7
NF3 (g)
NH3(g)
NH3(aq)
O(g)
03(g)
S(g)
SO₂(g)
SO3(g)
Sn(g)
SnO(s)
SnO₂ (s)
-132.1
-45.9
-80.29
249.2
142.7
277.2
-296.8
-395.7
301.2
-280.7
-577.6
▼
2C (s) + H₂ (g) →C₂H₂ (8)
Submit Previous Answers
✓ Correct
C₂H₂(g) is composed of elements C and H. In their standard
states, C exists as a monatomic solid and H exists as a
diatomic gas. Thus, the formation of 1 mol of C₂ H₂(g) is
expressed by the following chemical equation:
2C(s) + H₂(g) → C₂H₂(g)
Part H
Find AH for C₂ H2(g) from the given table.
Express your answer in kilojoules per mole to one decimal place.
AH;
=
Submit
V
ΑΣΦ
Provide Feedback
Request Answer
?
kJ/mol
Next >
Transcribed Image Text:MISSED THIS? Watch KCV 9.10, IWE 9.11; Read Section 9.10. You can click on the Review link to
access the section in your e Text.
Consider the table of Standard Thermodynamic Quantities for Selected Substances at 25 °C.
Substance AH (kJ/mol) Substance AH (kJ/mol) Substance AH (kJ/mol)
Al(g)
HCl(aq)
NF3 (8)
Al2O3(s)
Cr(g)
NH3(g)
F(g)
C(g)
CH4 (g)
C₂ H₂(g)
C2H₁ (g)
C₂H6 (g)
CO(g)
CO₂(g)
Cl(g)
HCl(g)
330.0
-1675.7
716.7
-74.6
227.4
52.4
-84.68
-110.5
-393.5
121.3
-92.3
HF (g)
-167.2
396.6
79.38
-273.3
HF (aq)
H(g)
218.0
Fe(g)
416.3
FeO(s)
-272.0
Fe₂O3(s)
-824.2
Fe3O4(s) -M118.4
N(g)
472.7
-335.0
NH3(aq)
O(g)
03(g)
S(g)
SO₂(g)
SO3(g)
Sn(g)
SnO(s)
SnO₂ (s)
-132.1
-45.9
-80.29
249.2
142.7
277.2
-296.8
-395.7
301.2
-280.7
-577.6
▼
ress your ans
4Cr (s) + 302 (g) →2Cr2O3 (s)
Submit
Part F
✓ Correct
Cr2O3 (s) is composed of elements Cr and O. In their
standard states, Cr exists as a monatomic solid and O exists
as a diatomic gas. Thus, the formation of 1 mol of Cr₂O3 (s) is
expressed by the following chemical equation:
2Cr(s) + O2(g) → Cr2O3(s)
as a chemical equation including phases.
ΔΗ
Previous Answers
Find AH for Cr2O3 (s) from the given table.
Express your answer in kilojoules per mole to one decimal place.
Submit
V
ΑΣΦ
Request Answer
200
?
kJ/mol
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