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 release 271. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 264. kJ of heat flows out of the gases system during the reaction. dlo 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 does work Does the gas mixture do work, or is work done on it? O work is done on it O neither How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits.

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
1 atm pressure
piston
cylinder is also submerged in a large insulated water bath. (See sketch at right.)
cylinder
From previous experiments, this chemical reaction is known to release 271. kJ of energy.
water bath
The temperature of the water bath is monitored, and it is determined from this data that 264. kJ of heat flows out of the
system during the reaction.
gases
olo
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 does work
Does the gas mixture do work, or is work done
on it?
O work is done on it
O neither
How much work is done on (or by) the gas
mixture? Be sure your answer has the correct
number of significant digits.
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 1 atm pressure piston cylinder is also submerged in a large insulated water bath. (See sketch at right.) cylinder From previous experiments, this chemical reaction is known to release 271. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 264. kJ of heat flows out of the system during the reaction. gases olo 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 does work Does the gas mixture do work, or is work done on it? O work is done on it O neither How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits.
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