A chemist measures the energy change AH during the following reaction: 2 NO₂(g) → N₂O4(9) Use the information to answer the following questions. This reaction is... AH=-55.3 kJ Suppose 67.1 g of NO₂ react. Will any heat be released or absorbed? If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Be sure your answer has the correct number of significant digits. endothermic. exothermic. Yes, absorbed. Yes, released. No. 10 X 5
A chemist measures the energy change AH during the following reaction: 2 NO₂(g) → N₂O4(9) Use the information to answer the following questions. This reaction is... AH=-55.3 kJ Suppose 67.1 g of NO₂ react. Will any heat be released or absorbed? If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Be sure your answer has the correct number of significant digits. endothermic. exothermic. Yes, absorbed. Yes, released. No. 10 X 5
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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![A chemist measures the energy change ΔH during the following reaction:
\[ 2 \text{NO}_2(\text{g}) \rightarrow \text{N}_2\text{O}_4(\text{g}) \quad \Delta H = -55.3 \text{ kJ} \]
Use the information to answer the following questions.
**1. This reaction is...**
- [ ] endothermic.
- [X] exothermic.
**2. Suppose 67.1 g of \(\text{NO}_2\) react. Will any heat be released or absorbed?**
- [ ] Yes, absorbed.
- [X] Yes, released.
- [ ] No.
**3. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed.**
\[ \boxed{\phantom{0}} \text{ kJ} \]
Be sure your answer has the correct number of significant digits.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F439811cd-3522-4321-811e-10b69707975d%2Fc0f6e3ef-00da-4b5c-81a8-25516f615d15%2Flg5i7me_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A chemist measures the energy change ΔH during the following reaction:
\[ 2 \text{NO}_2(\text{g}) \rightarrow \text{N}_2\text{O}_4(\text{g}) \quad \Delta H = -55.3 \text{ kJ} \]
Use the information to answer the following questions.
**1. This reaction is...**
- [ ] endothermic.
- [X] exothermic.
**2. Suppose 67.1 g of \(\text{NO}_2\) react. Will any heat be released or absorbed?**
- [ ] Yes, absorbed.
- [X] Yes, released.
- [ ] No.
**3. If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed.**
\[ \boxed{\phantom{0}} \text{ kJ} \]
Be sure your answer has the correct number of significant digits.
Expert Solution
Step 1: Defining exothermic and endothermic reaction
Answer:
During a chemical reaction, when heat evolves then it is called as exothermic reaction and when heat gets absorbed it is called as endothermic reaction.
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