City University of New York Lehman College Department of Chemistry 31)Consider t
ID: 539705 • Letter: C
Question
City University of New York Lehman College Department of Chemistry 31)Consider the following reaction: This reaction can be divided into two steps. Step 1: Bond Breaking Step 2: Bond Making/ Product Formation Changes in enthalpy for each step is summarized in the energy diagram below. Based on the diagram, which of the following is NOT correct. D Make C-Hada-a overall heat of this reaction is negative and the formation of products shown, describes a favorable process. Step 2 is endothermic increase in potential energy of the system more stable than the individual atoms of the reaction. b. The products are C. Step 2 is endothermaking of chemical bonds in the reaction results in an overall d. The breaking and making of ce in potential energy of the systemExplanation / Answer
Option (d) is not correct. Because overall reaction is exothermic which release the energy to surrounding hence lowers the potential energy of the system.
Also we may understand it as the potential energy of product is lower than that of reactant , which indicates formation of product stabilised the system so lowering in potential energy of system.