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 From previous experiments, this chemical reaction is known to absorb 298. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the piston does 236. kJ of work on the system 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 in Does heat flow into or out of the gas mixture? O out O neither O o o0 o|

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.)
1 atm pressure
piston
cylinder
From previous experiments, this chemical reaction is known to absorb 298. kJ of energy.
water bath
gases
The position of the piston is monitored, and it is determined from this data that the piston does 236. kJ of work on
the system during the reaction.
exothermic
Is the reaction exothermic or endothermic?
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
in
Does heat flow into or out of the gas mixture?
out
neither
How much heat flows? Round your answer to 2
significant digits.
O O OO O O
O O
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 From previous experiments, this chemical reaction is known to absorb 298. kJ of energy. water bath gases The position of the piston is monitored, and it is determined from this data that the piston does 236. kJ of work on the system during the reaction. exothermic Is the reaction exothermic or endothermic? 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 in Does heat flow into or out of the gas mixture? out neither How much heat flows? Round your answer to 2 significant digits. O O OO O O O O
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