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 The temperature of the water bath is monitored, and it is determined from this data that 246. kJ of heat flows into the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 370. kJ of work on the piston during the reaction. ter bath gases Is the reaction exothermic or endothermic? O exothermic O endothermic up Does the temperature of the water bath go up or down? O down o neither O in Does the piston move in or out? O out O neither O absorb O release o neither Does the reaction absorb or release energy? How much energy does the reaction absorb or release? Be sure your answer has the correct number of significant 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 The temperature of the water bath is monitored, and it is determined from this data that 246. kJ of heat flows into the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 370. kJ of work on the piston during the reaction. ter bath gases Is the reaction exothermic or endothermic? O exothermic O endothermic up Does the temperature of the water bath go up or down? O down o neither O in Does the piston move in or out? O out O neither O absorb O release o neither Does the reaction absorb or release energy? How much energy does the reaction absorb or release? Be sure your answer has the correct number of significant digits.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter9: Liquids And Solids

Section: Chapter Questions

Problem 119AE: In regions with dry climates, evaporative coolers are used to cool air. A typical electric air...

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