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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
8 Nov 2021

Given information

    

 

Step-by-step explanation

Step 1.

If a chemical equation is reversed,  changes the sign.

is a state function, which means that its value depends only on the initial and final states of the system.

   

when the reaction is reversed, the final and initial states will interchange. As the result,  changes its sign.

                 

           

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