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.) From previous experiments, this chemical reaction is known to absorb 114. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 397. kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? Does the gas mixture do work, or is work done on it? How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits. O exothermic O endothermic O up Odown Oneither in out Oneither O does work work is done on it Oneither x X Ś 1 atm pressure gases piston cylinder water bath

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.)
From previous experiments, this chemical reaction is known to absorb 114. kJ of energy.
The temperature of the water bath is monitored, and it is determined from this data that 397. kJ of heat flows out of the
system during the reaction.
Is the reaction exothermic or endothermic?
Does the temperature of the water bath go up or
down?
Does the piston move in or out?
Does the gas mixture do work, or is work done
on it?
How much work is done on (or by) the gas
mixture? Be sure your answer has the correct
number of significant digits.
O exothermic)
O endothermic
O up
O down
Oneither
O in
O out
Oneither
O does work
work
work
Oneither
is done on it.
KJ
X
S
1 atm pressure
tt
gases
piston
cylinder
water bath
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.) From previous experiments, this chemical reaction is known to absorb 114. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 397. kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? Does the gas mixture do work, or is work done on it? How much work is done on (or by) the gas mixture? Be sure your answer has the correct number of significant digits. O exothermic) O endothermic O up O down Oneither O in O out Oneither O does work work work Oneither is done on it. KJ X S 1 atm pressure tt gases piston cylinder water bath
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