Interpretation: To determine why the law of conservation of mass is not violated after the wood is burnt.
Concept Introduction: According to the law of conservation of mass, the mass can neither be created nor destroyed but is transformed from one form to another.
Answer to Problem 24LC
When wood burns, it transforms into ash or coal, neither of which has the same weight as the wood burned. Mass is transformed into heat and light.
Explanation of Solution
Because wood burns to generate carbon dioxide, gaseous water, and ash in addition to other products, the ash weighs far less than the original wood. Although they are not included in the ash mass, carbon dioxide and gaseous water also have mass; nonetheless, if we include all mass, then all masses are equal. Therefore, the conservation of mass law is not broken.
Chapter 11 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
- 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