A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to absorb 272. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 346. kJ of heat flows out of the system during the reaction.. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? Does the gas mixture do work, or is work done on it? How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits. O exothermic O endothermic O up Odown Oneither O in out Oneither O does work O work is done on it Oneither kJ 0.² X S 1 atm pressure gases piston cylinder water bath

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...
icon
Related questions
icon
Concept explainers
Question
### Image Transcription and Explanation

#### Text Description

A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.)

From previous experiments, this chemical reaction is known to absorb 272 kJ of energy.

The temperature of the water bath is monitored, and it is determined from this data that 346 kJ of heat flows out of the system during the reaction.

#### Table with Questions

1. **Is the reaction exothermic or endothermic?**
   - ☐ exothermic
   - ☐ endothermic

2. **Does the temperature of the water bath go up or down?**
   - ☐ up
   - ☐ down
   - ☐ neither

3. **Does the piston move in or out?**
   - ☐ in
   - ☐ out
   - ☐ neither

4. **Does the gas mixture do work, or is work done on it?**
   - ☐ does work
   - ☐ work is done on it
   - ☐ neither

5. **How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits.**
   - **[Answer box] kJ**

#### Diagram Explanation

The diagram shows a setup with the following components:

- **Piston:** Positioned to adjust as needed to maintain 1 atm pressure.
- **Cylinder:** Contains gaseous reactants and products.
- **Water Bath:** An insulated container surrounding the cylinder, likely used to measure thermal changes.
- **Gases:** Indicated inside the cylinder.
- **Thermometer:** Attached to measure the temperature within the setup, floating in the water bath.

The system illustrates a typical thermodynamics experiment to analyze reactions under controlled pressure, evaluating changes in energy and temperature.
Transcribed Image Text:### Image Transcription and Explanation #### Text Description A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to absorb 272 kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 346 kJ of heat flows out of the system during the reaction. #### Table with Questions 1. **Is the reaction exothermic or endothermic?** - ☐ exothermic - ☐ endothermic 2. **Does the temperature of the water bath go up or down?** - ☐ up - ☐ down - ☐ neither 3. **Does the piston move in or out?** - ☐ in - ☐ out - ☐ neither 4. **Does the gas mixture do work, or is work done on it?** - ☐ does work - ☐ work is done on it - ☐ neither 5. **How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits.** - **[Answer box] kJ** #### Diagram Explanation The diagram shows a setup with the following components: - **Piston:** Positioned to adjust as needed to maintain 1 atm pressure. - **Cylinder:** Contains gaseous reactants and products. - **Water Bath:** An insulated container surrounding the cylinder, likely used to measure thermal changes. - **Gases:** Indicated inside the cylinder. - **Thermometer:** Attached to measure the temperature within the setup, floating in the water bath. The system illustrates a typical thermodynamics experiment to analyze reactions under controlled pressure, evaluating changes in energy and temperature.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Thermochemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY