(s) - 2Fe (s) + 3CO2 (g) 3Fe (s) + 4CO2(s) - 4CO (g) + Fe304(s) ΔΗ--28.0 k the enthalpy of the reaction of Fe2O3 with CO AH = +12.5 kJ 3FE203 (s) + CO (g) - CO2 (g) + 2FE3O4 (s) is kJ. A) +109 B) -15.5 E) 40.5 C) -109 12) Given the data in the table below, AH°rxn for the reaction D) -59.0 12) D 3NO2 (g) + H2O (1) – 2HNO3 (aq) + NO (g) is kJ. Substance AH°f (kJ/mol) H2O (1) NO (g) NO2 (g) -286 90 34 HNO3 (aq) -207 NH3 (g) -46 A) 140 D) -140 E) -508 B) 64 C) -64 13) B which the temperature of 13) A sample of calcium carbonate [CACO3 (s)] absorbs 40.3 J of heat, upon the sample increases from 20.8 °C to 27.3 °C. If the specific heat of calcium carbonate is 0.82 J/g-K, what is the mass (in grams) of the sample? A) 5.1 g B) 7.6 g C) -7.6 g D) 0.13 g E) 5.3 g 14) D 14) The temperature of a 35.1 g sample of iron increases from 24.5 °C to 31.8 °C. If the specific heat of iron is 0.450 J/g-K, how many joules of heat are absorbed? A) 0.722 J C) -115 J D) 115 J E) 3.29 J B) 0.0936 J SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 15) 455SK 15) The AHrxn for the combustion of methane is -890.0 kJ. How much heat energy (kJ) is released if 82.1 grams of methane are burned in an excess amount of oxygen? 3 otoltzfus • M
(s) - 2Fe (s) + 3CO2 (g) 3Fe (s) + 4CO2(s) - 4CO (g) + Fe304(s) ΔΗ--28.0 k the enthalpy of the reaction of Fe2O3 with CO AH = +12.5 kJ 3FE203 (s) + CO (g) - CO2 (g) + 2FE3O4 (s) is kJ. A) +109 B) -15.5 E) 40.5 C) -109 12) Given the data in the table below, AH°rxn for the reaction D) -59.0 12) D 3NO2 (g) + H2O (1) – 2HNO3 (aq) + NO (g) is kJ. Substance AH°f (kJ/mol) H2O (1) NO (g) NO2 (g) -286 90 34 HNO3 (aq) -207 NH3 (g) -46 A) 140 D) -140 E) -508 B) 64 C) -64 13) B which the temperature of 13) A sample of calcium carbonate [CACO3 (s)] absorbs 40.3 J of heat, upon the sample increases from 20.8 °C to 27.3 °C. If the specific heat of calcium carbonate is 0.82 J/g-K, what is the mass (in grams) of the sample? A) 5.1 g B) 7.6 g C) -7.6 g D) 0.13 g E) 5.3 g 14) D 14) The temperature of a 35.1 g sample of iron increases from 24.5 °C to 31.8 °C. If the specific heat of iron is 0.450 J/g-K, how many joules of heat are absorbed? A) 0.722 J C) -115 J D) 115 J E) 3.29 J B) 0.0936 J SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. 15) 455SK 15) The AHrxn for the combustion of methane is -890.0 kJ. How much heat energy (kJ) is released if 82.1 grams of methane are burned in an excess amount of oxygen? 3 otoltzfus • M
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...
Related questions
Question
Question 14
![(s) - 2Fe (s) + 3CO2 (g)
3Fe (s) + 4CO2(s) - 4CO (g) + Fe304(s)
ΔΗ--28.0 k
the enthalpy of the reaction of Fe2O3 with CO
AH = +12.5 kJ
3FE203 (s) + CO (g) - CO2 (g) + 2FE3O4 (s)
is
kJ.
A) +109
B) -15.5
E) 40.5
C) -109
12) Given the data in the table below, AH°rxn for the reaction
D) -59.0
12) D
3NO2 (g) + H2O (1) – 2HNO3 (aq) + NO (g)
is
kJ.
Substance AH°f (kJ/mol)
H2O (1)
NO (g)
NO2 (g)
-286
90
34
HNO3 (aq)
-207
NH3 (g)
-46
A) 140
D) -140
E) -508
B) 64
C) -64
13) B
which the temperature of
13) A sample of calcium carbonate [CACO3 (s)] absorbs 40.3 J of heat, upon
the sample increases from 20.8 °C to 27.3 °C. If the specific heat of calcium carbonate is 0.82 J/g-K,
what is the mass (in grams) of the sample?
A) 5.1 g
B) 7.6 g
C) -7.6 g
D) 0.13 g
E) 5.3 g
14) D
14) The temperature of a 35.1 g sample of iron increases from 24.5 °C to 31.8 °C. If the specific heat of
iron is 0.450 J/g-K, how many joules of heat are absorbed?
A) 0.722 J
C) -115 J
D) 115 J
E) 3.29 J
B) 0.0936 J
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
15) 455SK
15) The AHrxn for the combustion of methane is -890.0 kJ. How much heat energy (kJ) is
released if 82.1 grams of methane are burned in an excess amount of oxygen?
3
otoltzfus • M](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1cdef31d-0fd6-49ca-a823-5c1cf3cbca2c%2F87187cd3-b27e-49bc-b11e-017d1b250b47%2Fnx8cdhb.jpeg&w=3840&q=75)
Transcribed Image Text:(s) - 2Fe (s) + 3CO2 (g)
3Fe (s) + 4CO2(s) - 4CO (g) + Fe304(s)
ΔΗ--28.0 k
the enthalpy of the reaction of Fe2O3 with CO
AH = +12.5 kJ
3FE203 (s) + CO (g) - CO2 (g) + 2FE3O4 (s)
is
kJ.
A) +109
B) -15.5
E) 40.5
C) -109
12) Given the data in the table below, AH°rxn for the reaction
D) -59.0
12) D
3NO2 (g) + H2O (1) – 2HNO3 (aq) + NO (g)
is
kJ.
Substance AH°f (kJ/mol)
H2O (1)
NO (g)
NO2 (g)
-286
90
34
HNO3 (aq)
-207
NH3 (g)
-46
A) 140
D) -140
E) -508
B) 64
C) -64
13) B
which the temperature of
13) A sample of calcium carbonate [CACO3 (s)] absorbs 40.3 J of heat, upon
the sample increases from 20.8 °C to 27.3 °C. If the specific heat of calcium carbonate is 0.82 J/g-K,
what is the mass (in grams) of the sample?
A) 5.1 g
B) 7.6 g
C) -7.6 g
D) 0.13 g
E) 5.3 g
14) D
14) The temperature of a 35.1 g sample of iron increases from 24.5 °C to 31.8 °C. If the specific heat of
iron is 0.450 J/g-K, how many joules of heat are absorbed?
A) 0.722 J
C) -115 J
D) 115 J
E) 3.29 J
B) 0.0936 J
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
15) 455SK
15) The AHrxn for the combustion of methane is -890.0 kJ. How much heat energy (kJ) is
released if 82.1 grams of methane are burned in an excess amount of oxygen?
3
otoltzfus • M
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY