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A mixtu V 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 The temperature of the water bath is monitored, and it is determined from this data that 287. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 314. kJ of work on the piston during the reaction. water ba gases O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither

A mixtu V 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 The temperature of the water bath is monitored, and it is determined from this data that 287. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 314. kJ of work on the piston during the reaction. water ba gases O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither

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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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.) The temperature of the water bath is monitored, and it is determined from this data that 287 kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 314 kJ of work on the piston during the reaction. **Questions and Answers:** 1. **Is the reaction exothermic or endothermic?** - Exothermic 2. **Does the temperature of the water bath go up or down?** - Neither 3. **Does the piston move in or out?** - Out 4. **Does the reaction absorb or release energy?** - Release 5. **How much energy does the reaction absorb or release? Round your answer to 3 significant digits.** - 601 kJ **Diagram Explanation:** The diagram illustrates a piston-cylinder system submerged in a water bath. The cylinder contains gases and is covered by a piston, allowing expansion or compression to maintain 1 atm pressure. A thermometer indicates the water bath temperature.
Transcribed Image Text: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.) The temperature of the water bath is monitored, and it is determined from this data that 287 kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 314 kJ of work on the piston during the reaction. **Questions and Answers:** 1. **Is the reaction exothermic or endothermic?** - Exothermic 2. **Does the temperature of the water bath go up or down?** - Neither 3. **Does the piston move in or out?** - Out 4. **Does the reaction absorb or release energy?** - Release 5. **How much energy does the reaction absorb or release? Round your answer to 3 significant digits.** - 601 kJ **Diagram Explanation:** The diagram illustrates a piston-cylinder system submerged in a water bath. The cylinder contains gases and is covered by a piston, allowing expansion or compression to maintain 1 atm pressure. A thermometer indicates the water bath temperature.
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