15. What is Hess's Law? How is it used? Why is it important in chemistry? Explain your ideas and provideat least one relevant example to support your answer.

Answered: 15. What is Hess's Law? How IS It used?…

15. What is Hess's Law? How IS It used? Why is It Importaht in chemistry? Explalh your Ideas and provide at least one relevant example to support your answer.

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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Question

15. What is Hess's Law? How is it used? Why is it important in chemistry? Explain your ideas and provide
at least one relevant example to support your answer.

Expert Solution

Step 1

Hess’s law states that the overalls energy change in the chemical reaction is equal to the sum of energy changes in the individual reactions. It is used when a directly measured enthalpy change of a reaction is not given.

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