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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.) 1 atm pressure - piston cylinder water bath From previous experiments, this chemical reaction is known to release 252. kJ of energy. gases The temperature of the water bath is monitored, and it is determined from this data that 137. kJ of heat flows out of the system during the reaction. O exothermic Is the reaction exothermic or endothermic? х10 endothermic up ? Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work Does the gas mixture do work, or is work done on it? work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant kJ digits.

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.) 1 atm pressure - piston cylinder water bath From previous experiments, this chemical reaction is known to release 252. kJ of energy. gases The temperature of the water bath is monitored, and it is determined from this data that 137. kJ of heat flows out of the system during the reaction. O exothermic Is the reaction exothermic or endothermic? х10 endothermic up ? Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work Does the gas mixture do work, or is work done on it? work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant kJ digits.

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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### Description of the Experiment A mixture of gaseous reactants is placed into a cylinder, where a chemical reaction converts them into gaseous products. The cylinder has a piston that can move in or out as needed to maintain a constant pressure of 1 atm. This cylinder is submerged in a large insulated water bath. From previous experiments, it is known that this chemical reaction releases 252 kJ of energy. The temperature of the water bath is monitored, and it is observed that 137 kJ of heat flows out of the system during the reaction. ### Questions and Observations 1. **Is the reaction exothermic or endothermic?** - Exothermic (selected) 2. **Does the temperature of the water bath go up or down?** - Options: Up, Down, Neither 3. **Does the piston move in or out?** - Options: In, Out, Neither 4. **Does the gas mixture do work, or is work done on it?** - Options: Does work, Work is done on it, Neither 5. **How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits.** - (Answer space provided) kJ ### Diagram Explanation The diagram on the right illustrates the setup, showing a cylinder with a piston containing gases. The cylinder is submerged in a water bath with labels indicating: - **1 atm pressure** exerted by the piston. - **Gases** inside the cylinder. - **Water bath** surrounding the cylinder. Additionally, a thermometer indicates the temperature changes during the process. This visual aids in understanding the physical changes happening during the reaction.
Transcribed Image Text:### Description of the Experiment A mixture of gaseous reactants is placed into a cylinder, where a chemical reaction converts them into gaseous products. The cylinder has a piston that can move in or out as needed to maintain a constant pressure of 1 atm. This cylinder is submerged in a large insulated water bath. From previous experiments, it is known that this chemical reaction releases 252 kJ of energy. The temperature of the water bath is monitored, and it is observed that 137 kJ of heat flows out of the system during the reaction. ### Questions and Observations 1. **Is the reaction exothermic or endothermic?** - Exothermic (selected) 2. **Does the temperature of the water bath go up or down?** - Options: Up, Down, Neither 3. **Does the piston move in or out?** - Options: In, Out, Neither 4. **Does the gas mixture do work, or is work done on it?** - Options: Does work, Work is done on it, Neither 5. **How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits.** - (Answer space provided) kJ ### Diagram Explanation The diagram on the right illustrates the setup, showing a cylinder with a piston containing gases. The cylinder is submerged in a water bath with labels indicating: - **1 atm pressure** exerted by the piston. - **Gases** inside the cylinder. - **Water bath** surrounding the cylinder. Additionally, a thermometer indicates the temperature changes during the process. This visual aids in understanding the physical changes happening during the reaction.
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