## Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall

# Chapter 6 - Sections 6.1-6.10 - Exercises - Conceptual Problems: 131

Choice D.

#### Work Step by Step

$\Delta$$E_{system}$ is positive whenever the reactants are a lower internal energy than the products. Therefore, energy flows into the systems from the surrounding and therefore the answer is D.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.