C(s) + 2 F2(8) AH = +52.3 kJ %3D 2 C(s) + 2 H2(g) → C2H4(8) calculate AH for the reaction of ethylene with F2: →2 CF4(8) + 4 HF(g) C2H4(8) + 6 F2(8) - 5.66 Given the data AH=+180.7 kJ 2 NO(8) N2(8) + O2(8) - AH = -113.1 kJ → 2 NO2(g) 2 NO(g) + O2(8) 2 N20(8) 2 N2(8) + O2(g) AH = -163.2 kJ use Hess's law to calculate AH for the reaction N20(g) + NO2(8) → 3 NO(8) W Sha 10 Enthalpies of Formation (Section 5.7) 5.67 (a) What is meant by the term standard conditions with ref- erence to enthalpy changes? (b) What is meant by the term enthalpy of formation? (c) What is meant by the term standard enthalpy of formation? 5.68 (a) What is the value of the standard enthalpy of formation of an element in its most stable form? (b) Write the chemi- cal equation for the reaction whose enthalpy change is the standard enthalpy of formation of sucrose (table sugar) C12H22O11(s), AH[C12H22O11(s)]. 5.69 For each of the followin nounds, write a balanced ther the formation of one mol hts in their standard state substance in Appendix C (d) Pb(NO3)2(s). uescribe the formation of th mical equatior ompound f n look ur 2(8), (b) § e balanc ollowing and th ements andard states dard e
C(s) + 2 F2(8) AH = +52.3 kJ %3D 2 C(s) + 2 H2(g) → C2H4(8) calculate AH for the reaction of ethylene with F2: →2 CF4(8) + 4 HF(g) C2H4(8) + 6 F2(8) - 5.66 Given the data AH=+180.7 kJ 2 NO(8) N2(8) + O2(8) - AH = -113.1 kJ → 2 NO2(g) 2 NO(g) + O2(8) 2 N20(8) 2 N2(8) + O2(g) AH = -163.2 kJ use Hess's law to calculate AH for the reaction N20(g) + NO2(8) → 3 NO(8) W Sha 10 Enthalpies of Formation (Section 5.7) 5.67 (a) What is meant by the term standard conditions with ref- erence to enthalpy changes? (b) What is meant by the term enthalpy of formation? (c) What is meant by the term standard enthalpy of formation? 5.68 (a) What is the value of the standard enthalpy of formation of an element in its most stable form? (b) Write the chemi- cal equation for the reaction whose enthalpy change is the standard enthalpy of formation of sucrose (table sugar) C12H22O11(s), AH[C12H22O11(s)]. 5.69 For each of the followin nounds, write a balanced ther the formation of one mol hts in their standard state substance in Appendix C (d) Pb(NO3)2(s). uescribe the formation of th mical equatior ompound f n look ur 2(8), (b) § e balanc ollowing and th ements andard states dard e
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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Question
66
![C(s) + 2 F2(8)
AH = +52.3 kJ
%3D
2 C(s) + 2 H2(g) → C2H4(8)
calculate AH for the reaction of ethylene with F2:
→2 CF4(8) + 4 HF(g)
C2H4(8) + 6 F2(8) -
5.66 Given the data
AH=+180.7 kJ
2 NO(8)
N2(8) + O2(8) -
AH = -113.1 kJ
→ 2 NO2(g)
2 NO(g) + O2(8)
2 N20(8)
2 N2(8) + O2(g) AH = -163.2 kJ
use Hess's law to calculate AH for the reaction
N20(g) + NO2(8)
→ 3 NO(8)
W Sha
10
Enthalpies of Formation (Section 5.7)
5.67 (a) What is meant by the term standard conditions with ref-
erence to enthalpy changes? (b) What is meant by the term
enthalpy of formation? (c) What is meant by the term standard
enthalpy of formation?
5.68 (a) What is the value of the standard enthalpy of formation
of an element in its most stable form? (b) Write the chemi-
cal equation for the reaction whose enthalpy change is the
standard enthalpy of formation of sucrose (table sugar)
C12H22O11(s), AH[C12H22O11(s)].
5.69 For each of the followin
nounds, write a balanced ther
the formation of one mol
hts in their standard state
substance in Appendix C
(d) Pb(NO3)2(s).
uescribe the formation of th
mical equatior
ompound f
n look ur
2(8), (b) §
e balanc
ollowing
and th
ements
andard states
dard e](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb2f71cc3-406d-4549-a751-96d454552a8c%2F86d2ba95-d3a2-4610-b5e2-d81c9adc8e98%2Fvfne2wz.jpeg&w=3840&q=75)
Transcribed Image Text:C(s) + 2 F2(8)
AH = +52.3 kJ
%3D
2 C(s) + 2 H2(g) → C2H4(8)
calculate AH for the reaction of ethylene with F2:
→2 CF4(8) + 4 HF(g)
C2H4(8) + 6 F2(8) -
5.66 Given the data
AH=+180.7 kJ
2 NO(8)
N2(8) + O2(8) -
AH = -113.1 kJ
→ 2 NO2(g)
2 NO(g) + O2(8)
2 N20(8)
2 N2(8) + O2(g) AH = -163.2 kJ
use Hess's law to calculate AH for the reaction
N20(g) + NO2(8)
→ 3 NO(8)
W Sha
10
Enthalpies of Formation (Section 5.7)
5.67 (a) What is meant by the term standard conditions with ref-
erence to enthalpy changes? (b) What is meant by the term
enthalpy of formation? (c) What is meant by the term standard
enthalpy of formation?
5.68 (a) What is the value of the standard enthalpy of formation
of an element in its most stable form? (b) Write the chemi-
cal equation for the reaction whose enthalpy change is the
standard enthalpy of formation of sucrose (table sugar)
C12H22O11(s), AH[C12H22O11(s)].
5.69 For each of the followin
nounds, write a balanced ther
the formation of one mol
hts in their standard state
substance in Appendix C
(d) Pb(NO3)2(s).
uescribe the formation of th
mical equatior
ompound f
n look ur
2(8), (b) §
e balanc
ollowing
and th
ements
andard states
dard e
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