Concept explainers
Interpretation:
The amount of thermal energies produced from one gram of
Answer to Problem 89QRT
The enthalpy evolved from one gram of octane is more than enthalpy evolved from one gram of methanol. Methanol is oxidized more than octane hence its combustion will produce a smaller amount of energy.
Explanation of Solution
The equations for combustion of one mole of
The combustion enthalpy is as follows,
The enthalpy evolved for one gram of the two liquids are calculated as shown below,
From above calculations it is clear that enthalpy evolved from one gram of octane is more than enthalpy evolved from one gram of methanol. Methanol is oxidized more than octane hence its combustion will produce a smaller amount of energy.
Want to see more full solutions like this?
Chapter 4 Solutions
Chemistry: The Molecular Science
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY