MISSED THIS? Watch KCV 9.10. IWE 9.12; ReadSection 9.10. You can click on the Review link to access thesection in your e Text.Part CUse standard enthalpies of formation from the following tableto calculate AHm for each reaction.3NO2(g) + H20(1) → 2HNO3 (aq) + NO(g)Substance AH; (kJ/mol)Express your answer in kilojoules as an integer.A2O3(s)-1675.7BizO3 (s)-573.91AX中?C2H2(g)227.4CH4(g)52.4ΔΗAHin =kJC,H6 (g)-84.68CO(g)-110.5SubmitRequest AnswerCO2 (1)-413.8CO2(g)-393.5Cr2Os (s)-1139.7Part DH2O(g)-241.8H2O(1)Cr2Os (s) + 3C0(g) 2Cr(s) + 3CO2 (g)-285.8HNO3 (aq)Express your answer in kilojoules to one decimal place.-207NO(g)91.3?NO2(g)33.2AHin =kJSubmitRequest AnswerProvide FeedbackNext >P PearsonCopyright © 2021 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy I Permissions I Contact UsI Review | Constants | Periodic TableMISSED THIS? Watch KCV 9.10. IWE 9.12; ReadSection 9.10. You can click on the Review link to access thesection in your e Text.Part AUse standard enthalpies of formation from the following tableto calculate AH for each reaction.C,H2 (g) + H2(g) → C,H4 (g)Substance AH; (kJ/mol)Express your answer in kilojoules to one decimal place.AlOs(s)-1675.7BizO3 (s)-573.9ΑΣΦ?C2H2 (g)227.4CH1(g)52.4AHin =kJC,Hs (g)-84.68CO(g)-110.5SubmitRequest AnswerCO2 (1)-413.8CO2(g)-393,5Part BCr203 (s)-1139.7H2O(g)-241.8CO(g) + H20(g) - H2 (g) + CO2(g)H20(1)-285.8HNO3 (aq)Express your answer in kilojoules to one decimal place.-207NO(g)91.3+ ΑΣφ.?NO2(g)33.2AHin =kJSubmitRequest AnswerPart CP Pearson

Part A Use standard enthalpies of formation from the following table to calculate AHn for each reaction. C,H2(x) + H2(x) → C,H«(x) Substance AH; (kJ/mol) AhOs(s) Express your answer in kilojoules to one decimal place. -1675.7 BizO3 (s) -573.9 ? C2H2(g) 227.4 C;H4(g) 52.4 kJ -84.68 CO(g) -110.5 Submit Request Answer CO2(1) -413.8 CO2(g) -393.5 Part B CrzO3(s) -1139.7 H2O(x) -241.8 CO(K) + H2O(x) → H2(x)+ CO2(x) H20(1) -285.8 Express your answer in kilojoules to one decimal place. HNO3(aq) -207 NO(g) 91.3 ? NO:(x) 33.2 kJ Submit Request Answer

Part A Use standard enthalpies of formation from the following table to calculate AHn for each reaction. C,H2(x) + H2(x) → C,H«(x) Substance AH; (kJ/mol) AhOs(s) Express your answer in kilojoules to one decimal place. -1675.7 BizO3 (s) -573.9 ? C2H2(g) 227.4 C;H4(g) 52.4 kJ -84.68 CO(g) -110.5 Submit Request Answer CO2(1) -413.8 CO2(g) -393.5 Part B CrzO3(s) -1139.7 H2O(x) -241.8 CO(K) + H2O(x) → H2(x)+ CO2(x) H20(1) -285.8 Express your answer in kilojoules to one decimal place. HNO3(aq) -207 NO(g) 91.3 ? NO:(x) 33.2 kJ Submit Request Answer

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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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

MISSED THIS? Watch KCV 9.10. IWE 9.12; Read
Section 9.10. You can click on the Review link to access the
section in your e Text.
Part C
Use standard enthalpies of formation from the following table
to calculate AHm for each reaction.
3NO2(g) + H20(1) → 2HNO3 (aq) + NO(g)
Substance AH; (kJ/mol)
Express your answer in kilojoules as an integer.
A2O3(s)
-1675.7
BizO3 (s)
-573.9
1AX中
?
C2H2(g)
227.4
CH4(g)
52.4
ΔΗ
AHin =
kJ
C,H6 (g)
-84.68
CO(g)
-110.5
Submit
Request Answer
CO2 (1)
-413.8
CO2(g)
-393.5
Cr2Os (s)
-1139.7
Part D
H2O(g)
-241.8
H2O(1)
Cr2Os (s) + 3C0(g) 2Cr(s) + 3CO2 (g)
-285.8
HNO3 (aq)
Express your answer in kilojoules to one decimal place.
-207
NO(g)
91.3
?
NO2(g)
33.2
AHin =
kJ
Submit
Request Answer
Provide Feedback
Next >
P Pearson
Copyright © 2021 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy I Permissions I Contact UsI

Review | Constants | Periodic Table
MISSED THIS? Watch KCV 9.10. IWE 9.12; Read
Section 9.10. You can click on the Review link to access the
section in your e Text.
Part A
Use standard enthalpies of formation from the following table
to calculate AH for each reaction.
C,H2 (g) + H2(g) → C,H4 (g)
Substance AH; (kJ/mol)
Express your answer in kilojoules to one decimal place.
AlOs(s)
-1675.7
BizO3 (s)
-573.9
ΑΣΦ
?
C2H2 (g)
227.4
CH1(g)
52.4
AHin =
kJ
C,Hs (g)
-84.68
CO(g)
-110.5
Submit
Request Answer
CO2 (1)
-413.8
CO2(g)
-393,5
Part B
Cr203 (s)
-1139.7
H2O(g)
-241.8
CO(g) + H20(g) - H2 (g) + CO2(g)
H20(1)
-285.8
HNO3 (aq)
Express your answer in kilojoules to one decimal place.
-207
NO(g)
91.3
+ ΑΣφ.
?
NO2(g)
33.2
AHin =
kJ
Submit
Request Answer
Part C
P Pearson

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