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 154. 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 piston does 364. kJ of work on the system 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 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

Chemistry
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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
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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.)
1 atm pressure
piston
cylinder
The temperature of the water bath is monitored, and it is determined from this data that 154. 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
piston does 364. kJ of work on the system 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
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
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.) 1 atm pressure piston cylinder The temperature of the water bath is monitored, and it is determined from this data that 154. 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 piston does 364. kJ of work on the system 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 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
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