### Image Transcription and Explanation#### Text DescriptionA 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 Questions1. **Is the reaction exothermic or endothermic?** - ☐ exothermic - ☐ endothermic2. **Does the temperature of the water bath go up or down?** - ☐ up - ☐ down - ☐ neither3. **Does the piston move in or out?** - ☐ in - ☐ out - ☐ neither4. **Does the gas mixture do work, or is work done on it?** - ☐ does work - ☐ work is done on it - ☐ neither5. **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 ExplanationThe 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.

Given :Energy absorbed by the reaction, ∆E= +272KJ where positive sign indicates energy is…

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

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...

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

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.

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