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1. A reaction occurs in a calorimeter, resulting in the starting and final temperatures shown below. What can you say about the reaction and the enthalpy change (AH) during the reaction? 38.8 °C Starting temperature: 21.0 °C A. The reaction is endothermic and AH is positive. ○ B. The reaction is endothermic and AH is negative. OC. The reaction is exothermic and AH is positive. D. The reaction is exothermic and AH is negative.

1. A reaction occurs in a calorimeter, resulting in the starting and final temperatures shown below. What can you say about the reaction and the enthalpy change (AH) during the reaction? 38.8 °C Starting temperature: 21.0 °C A. The reaction is endothermic and AH is positive. ○ B. The reaction is endothermic and AH is negative. OC. The reaction is exothermic and AH is positive. D. The reaction is exothermic and AH is negative.

Chemistry
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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1. A reaction occurs in a calorimeter, resulting in the starting and final temperatures shown below. What can you say about the reaction and the enthalpy change (AH) during the reaction? 38.8 °C Starting temperature: 21.0 °C A. The reaction is endothermic and AH is positive. ○ B. The reaction is endothermic and AH is negative. OC. The reaction is exothermic and AH is positive. D. The reaction is exothermic and AH is negative.
Transcribed Image Text:1. A reaction occurs in a calorimeter, resulting in the starting and final temperatures shown below. What can you say about the reaction and the enthalpy change (AH) during the reaction? 38.8 °C Starting temperature: 21.0 °C A. The reaction is endothermic and AH is positive. ○ B. The reaction is endothermic and AH is negative. OC. The reaction is exothermic and AH is positive. D. The reaction is exothermic and AH is negative.
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