
Interpretation: The microscopic process that takes place when a solid melts has to be described.
Concept introduction: During the process of melting, energy goes exclusively to change the state of a substance; it does not change the temperature of a substance. Melting is an isothermal process because the substance remains constant at the same temperature.

Answer to Problem 16A
Melting of solid takes place because upon the addition of heat, the particles moves faster and faster until they began to come separately causing them to move in a random motion which has the least resistance.
Explanation of Solution
In solid, individual particles are closely packed because the intermolecular forces could not be overcome by the energy of the particles. When extra energy is supplied, particles have sufficient energy to move around but not sufficient energy to separate and the formation of liquid phase starts. In liquid phase, the particles are in contact with each other and are able to move around each other.
When a solid is melted, the liquid phase is obtained. The intermolecular distance in liquid is greater than the intermolecular distance in solid. In simple words, during the process of melting the molecules move apart. Due to this, the strength of intermolecular attraction decreases.
Melting of solid takes place because upon the addition of heat, the particles moves faster and faster until they began to come separately causing them to move in a random motion.
Chapter 14 Solutions
World of Chemistry
- Indicate the products obtained by mixing (3-oxo-3-phenylpropyl)triphenylphosphonium bromide with sodium hydride.arrow_forwardWe mix N-ethyl-2-hexanamine with excess methyl iodide and followed by heating with aqueous Ag2O. Indicate the major products obtained.arrow_forwardIndicate the products obtained by mixing acetophenone with iodine and NaOH.arrow_forward
- Indicate the products obtained by mixing 2-Propanone and ethyllithium and performing a subsequent acid hydrolysis.arrow_forwardIndicate the products obtained if (E)-2-butenal and 3-oxo-butanenitrile are mixed with sodium ethoxide in ethanol.arrow_forwardQuestion 3 (4 points), Draw a full arrow-pushing mechanism for the following reaction Please draw all structures clearly. Note that this intramolecular cyclization is analogous to the mechanism for halohydrin formation. COH Br + HBr Brarrow_forward
- Indicate the products obtained if 2,2-dimethylpropanal and acetaldehyde are mixed with sodium ethoxide in ethanol.arrow_forwardIndicate the products obtained if 2,2-dimethylpropanal and acetaldehyde are reacted with sodium ethoxide in ethanol.arrow_forward2,2-Dimethylpropanal and acetaldehyde are reacted with sodium ethoxide in ethanol. Indicate the products obtained.arrow_forward
- Add conditions above and below the arrow that turn the reactant below into the product below in a single transformationADS fint anditions 百 Abl res condinese NC ง Add on condtions 1.0 B H,N.arrow_forward3. Provide all the steps and reagents for this synthesis. OHarrow_forwardSteps and explanationarrow_forward
- 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





