Hydrazine and 1,1-dimethylhydrazine both react spontaneously with Oz and can be used as rocket fuels. N3H4() + O2(g) → N2(g) + 2 H2O(g) N,Hạ (CH,)2() +4 0:(8) + 2 CO: (8) + 4 Hạ0(g) + N2(8) The molar enthalpy of formation of N3H,(() is +50.6 kl mol, and that of N3H2 (CH,)2(0) is +48.9 kJ mol. Use these values, with other A,H values in the table below. Compound A H (kJ/mol) H,O(g) CO(8) -241.83 -393.509 Calculate the specific heat of the reaction hydrazine with oxygen. A,H = -16.7 V kig hydrazine Correct To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products: A,H" (kJ/mol) = 2 mol x (-241.83 kJ/mol) – 1 mol x x 50.6 kJ/mol = -534.3 kJ/mol Convert the value from (kJ mol) to (kJg): 1 mol (N,H4) 32.05 g (N,H,) A,H" (kJ/g) = -534.3 kJ/mol x = -16.67 kJ/g Calculate specific heat of the reaction 1,1-dimethyikydrazine with onygen. A,H' = 30.06 v kig 1,1-dimethyilhydrazine Correct To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products: A,H" (kJ/mol) = 2 mol x (-393.509 kJ/mol) + 4 mol x x (-241.83 kJ/mol) – 1 mol x 48.9 kJ/mol --1803.2 kJ/mol Convert the value from (kJ mol) to (kg): 1 mol (N3 H3 (CH3)2) 60.10 g (N;H2 (CH,)2) -30.00 kJ/g A,H" (kJ/g) = -1803.2 kJ/mol x Decide whether the reaction of hydrazine or 1,1-dimethyihydrazine with oxygen provides more energy per gram. O Hydrazine gives more heat per gram when reacting with oxygen. O1,1-Dimethylhydrazine gives more heat per gram when reacting with oxygen. O The compounds give almost the same heat per gram when reacting with oxygen.
Hydrazine and 1,1-dimethylhydrazine both react spontaneously with Oz and can be used as rocket fuels. N3H4() + O2(g) → N2(g) + 2 H2O(g) N,Hạ (CH,)2() +4 0:(8) + 2 CO: (8) + 4 Hạ0(g) + N2(8) The molar enthalpy of formation of N3H,(() is +50.6 kl mol, and that of N3H2 (CH,)2(0) is +48.9 kJ mol. Use these values, with other A,H values in the table below. Compound A H (kJ/mol) H,O(g) CO(8) -241.83 -393.509 Calculate the specific heat of the reaction hydrazine with oxygen. A,H = -16.7 V kig hydrazine Correct To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products: A,H" (kJ/mol) = 2 mol x (-241.83 kJ/mol) – 1 mol x x 50.6 kJ/mol = -534.3 kJ/mol Convert the value from (kJ mol) to (kJg): 1 mol (N,H4) 32.05 g (N,H,) A,H" (kJ/g) = -534.3 kJ/mol x = -16.67 kJ/g Calculate specific heat of the reaction 1,1-dimethyikydrazine with onygen. A,H' = 30.06 v kig 1,1-dimethyilhydrazine Correct To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products: A,H" (kJ/mol) = 2 mol x (-393.509 kJ/mol) + 4 mol x x (-241.83 kJ/mol) – 1 mol x 48.9 kJ/mol --1803.2 kJ/mol Convert the value from (kJ mol) to (kg): 1 mol (N3 H3 (CH3)2) 60.10 g (N;H2 (CH,)2) -30.00 kJ/g A,H" (kJ/g) = -1803.2 kJ/mol x Decide whether the reaction of hydrazine or 1,1-dimethyihydrazine with oxygen provides more energy per gram. O Hydrazine gives more heat per gram when reacting with oxygen. O1,1-Dimethylhydrazine gives more heat per gram when reacting with oxygen. O The compounds give almost the same heat per gram when reacting with oxygen.
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
*please answer question C
the other answer is needed to answer c
| c |
Decide whether the reaction of hydrazine or 1,1-dimethylhydrazine with oxygen provides more energy per gram. a)Hydrazine gives more heat per gram when reacting with oxygen. b)1,1-Dimethylhydrazine gives more heat per gram when reacting with oxygen. c)The compounds give almost the same heat per gram when reacting with oxygen. |
Transcribed Image Text:Hydrazine and 1,1-dimethylhydrazine both react spontaneously with Oz and can be used as rocket fuels.
N3H4() + O2(g) → N2(g) + 2 H2O(g)
N,Hạ (CH,)2() +4 0:(8) + 2 CO: (8) + 4 Hạ0(g) + N2(8)
The molar enthalpy of formation of N3H,(() is +50.6 kl mol, and that of N3H2 (CH,)2(0) is +48.9 kJ mol. Use these values, with other A,H values in the table below.
Compound A H (kJ/mol)
H,O(g)
CO(8)
-241.83
-393.509
Calculate the specific heat of the reaction hydrazine with oxygen.
A,H = -16.7
V kig hydrazine
Correct
To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products:
A,H" (kJ/mol) = 2 mol x (-241.83 kJ/mol) – 1 mol x
x 50.6 kJ/mol = -534.3 kJ/mol
Convert the value from (kJ mol) to (kJg):
1 mol (N,H4)
32.05 g (N,H,)
A,H" (kJ/g) = -534.3 kJ/mol x
= -16.67 kJ/g
Calculate specific heat of the reaction 1,1-dimethyikydrazine with onygen.
A,H' = 30.06 v kig 1,1-dimethyilhydrazine
Correct
To calculate molar enthalpy of the reaction, the sum of molar standard enthalpies of formation of reactants should be subtracted from molar standard enthalpies of formation of products:
A,H" (kJ/mol) = 2 mol x (-393.509 kJ/mol) + 4 mol x
x (-241.83 kJ/mol) – 1 mol x 48.9 kJ/mol --1803.2 kJ/mol
Convert the value from (kJ mol) to (kg):
1 mol (N3 H3 (CH3)2)
60.10 g (N;H2 (CH,)2)
-30.00 kJ/g
A,H" (kJ/g) = -1803.2 kJ/mol x
Decide whether the reaction of hydrazine or 1,1-dimethyihydrazine with oxygen provides more energy per gram.
O Hydrazine gives more heat per gram when reacting with oxygen.
O1,1-Dimethylhydrazine gives more heat per gram when reacting with oxygen.
O The compounds give almost the same heat per gram when reacting with oxygen.
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