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À mixtu V gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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.) 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 bath gases O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or O down down? O neither O in Does the piston move in or out? O out

À mixtu V gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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.) 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 bath gases O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or O down down? O neither O in Does the piston move in or out? O out

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 81AP
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A mixtu v gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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.) 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 water bath 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. 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 O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O neither How much energy does the reaction absorb or release? Round your answer to 3 significant digits.
Transcribed Image Text:A mixtu v gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The 1 atm pressure 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.) 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 water bath 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. 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 O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O neither How much energy does the reaction absorb or release? Round your answer to 3 significant digits.
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