Concept explainers
Interpretation: A reaction occur readily and has an endothermic heat of reaction, the driving force for the reaction needs to be explained.
Concept Introduction: Energy distribution means concentrated energy present in a given cycle that can spread widely. Matter spread means the molecules are spread out and occupy a greater volume.
Answer to Problem 43A
The driving force for endothermic heat of reaction is matter spread.
Explanation of Solution
The two factors energy spread and matter spread are the main driving forces that cause things to happen. Processes are preferred if they require spreading energy and transmitting matter. In every exothermic process, energy distribution takes place. On the other hand, salt dissolving in water is an endothermic process and it is favored by spreading matter. Therefore, the driving force must be matter spread for endothermic reactions.
Two very important driving forces are energy spread and matter spread.
Chapter 10 Solutions
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