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 167. 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 346. kJ of work on the piston during the reaction. water 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? Be sure your answer has the correct number of significant digits.

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
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.)
1 atm pressure
piston
cylinder
The temperature of the water bath is monitored, and it is determined from this data that 167. 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 346. kJ of work on the piston during the reaction.
water bath
gases
exothermic
Is the reaction exothermic or endothermic?
x10
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
absorb
Does the reaction absorb or release energy?
release
neither
How much energy does the reaction absorb or
release? Be sure your answer has the correct
number of significant digits.
|kJ
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 167. 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 346. kJ of work on the piston during the reaction. water bath gases exothermic Is the reaction exothermic or endothermic? x10 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 absorb Does the reaction absorb or release energy? release neither How much energy does the reaction absorb or release? Be sure your answer has the correct number of significant digits. |kJ
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