Does an exothermic reaction go more to completion if I raise the temperature, lower the temperature, or perform the experiment at room temperature? Briefly explain.
Does an exothermic reaction go more to completion if I raise the temperature, lower the temperature, or perform the experiment at room temperature? Briefly explain.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Question:**
2. Does an exothermic reaction go more to completion if I raise the temperature, lower the temperature, or perform the experiment at room temperature? Briefly explain.
**Explanation:**
Exothermic reactions release heat as they proceed. According to Le Chatelier's principle, if the temperature is increased, the system will shift to absorb the excess heat, meaning the reaction will move in the endothermic (backward) direction, potentially reducing the completion of the exothermic reaction. Conversely, lowering the temperature would favor the exothermic (forward) reaction, helping it proceed more towards completion.
Performing the reaction at room temperature typically allows it to proceed under normal conditions, but whether it goes to completion would depend on the specific reaction kinetics and equilibrium involved. In general, lowering the temperature encourages the completion of exothermic reactions.
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