Homework Help is Here – Start Your Trial Now!
Science
Chemistry
1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above. d) Calculate the AH in kJ/g. Ex. Balanced Combustion Equation for Methane (CH4) H H-C-H I H +20=0 Bond Broken (energy absorbed) 4 C-H bonds 2 0-0 bonds 0=c=0 + 2 H-0-H Bonds Formed (energy released) 2 C=O bonds 4 0-H bonds

1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above. d) Calculate the AH in kJ/g. Ex. Balanced Combustion Equation for Methane (CH4) H H-C-H I H +20=0 Bond Broken (energy absorbed) 4 C-H bonds 2 0-0 bonds 0=c=0 + 2 H-0-H Bonds Formed (energy released) 2 C=O bonds 4 0-H bonds

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter8: Advanced Theories Of Covalent Bonding
Section: Chapter Questions
Problem 2E: Draw a curve that describes the energy of a system with H and Cl atoms at varying distances. Then,...
See similar textbooks
icon
Related questions
icon
Concept explainers
Question

Do propane (CH8) 

question 1) C and D

Knowing this, the change in enthalpy (AH) for a reaction- the amount of heat energy absorbed or released- can be estimated using the following equation and the BDE's of various chemical bonds: Bond H-H H-C H-O H-F H-CI H-Br Br-Br AH (BDE's of bonds breaking) - (BDE's of bonds being formed) BDE (kJ/mol) 432 411 459 565 428 362 190 Literature Combustion Data: Methane Data Page ● Ethane Data Page Propane Data Page Ethanol Data Page Bond C-C C=C CEC C-O C=O H-1 |- BDE (kJ/mol) 346 602 835 358 799 295 148 Bond N-N N=N NEN O-O 0=0 F-F CI-CI BDE (kJ/mol) 167 418 942 142 494 155 240 For this demonstration to the CEO, we're going to calculate the change in enthalpy, AH, for the combustion of 4 compounds: methane (CH4), ethane (C₂H6), propane (C3H8), and ethanol (C₂H5OH).
Transcribed Image Text:Knowing this, the change in enthalpy (AH) for a reaction- the amount of heat energy absorbed or released- can be estimated using the following equation and the BDE's of various chemical bonds: Bond H-H H-C H-O H-F H-CI H-Br Br-Br AH (BDE's of bonds breaking) - (BDE's of bonds being formed) BDE (kJ/mol) 432 411 459 565 428 362 190 Literature Combustion Data: Methane Data Page ● Ethane Data Page Propane Data Page Ethanol Data Page Bond C-C C=C CEC C-O C=O H-1 |- BDE (kJ/mol) 346 602 835 358 799 295 148 Bond N-N N=N NEN O-O 0=0 F-F CI-CI BDE (kJ/mol) 167 418 942 142 494 155 240 For this demonstration to the CEO, we're going to calculate the change in enthalpy, AH, for the combustion of 4 compounds: methane (CH4), ethane (C₂H6), propane (C3H8), and ethanol (C₂H5OH).
1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above. d) Calculate the AH in kJ/g. Ex. Balanced Combustion Equation for Methane (CH4) H H-C-H + 20=0 H Bond Broken (energy absorbed) 4 C-H bonds 2 0=0 bonds 0=c=0 + 2 H-O-H Bonds Formed (energy released) 2 C=0 bonds 4 O-H bonds
Transcribed Image Text:1) For each compound, complete the following steps: a) Write a complete, balanced combustion equation using Lewis structures for all species. An example for methane is shown below. b) Make a list of all the bonds that are broken and formed during the reaction (see also example below). c) Calculate AH in kJ/mol using the equation above. d) Calculate the AH in kJ/g. Ex. Balanced Combustion Equation for Methane (CH4) H H-C-H + 20=0 H Bond Broken (energy absorbed) 4 C-H bonds 2 0=0 bonds 0=c=0 + 2 H-O-H Bonds Formed (energy released) 2 C=0 bonds 4 O-H bonds
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermochemistry
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:
9781938168390
Author:
Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:
OpenStax
Chemistry: Principles and Practice
Chemistry: Principles and Practice
Chemistry
ISBN:
9780534420123
Author:
Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:
Cengage Learning
Chemistry: The Molecular Science
Chemistry: The Molecular Science
Chemistry
ISBN:
9781285199047
Author:
John W. Moore, Conrad L. Stanitski
Publisher:
Cengage Learning
Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
Chemistry
ISBN:
9781337399425
Author:
Steven S. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781337399074
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
Chemistry
ISBN:
9781133949640
Author:
John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS