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 release 166. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 123. kJ of heat flows into the system during the reaction. 1 atm pressure gases piston cylinder water bath Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? exothermic endothermic □×10 x10 up ☑ down neither in out Does the gas mixture do work, or is work done on it? neither does work work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits. □kJ

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
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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 release 166. kJ of energy.
The temperature of the water bath is monitored, and it is determined from this data that 123. kJ of heat flows into the
system during the reaction.
1 atm pressure
gases
piston
cylinder
water bath
Is the reaction exothermic or endothermic?
Does the temperature of the water bath go up or
down?
Does the piston move in or out?
exothermic
endothermic
□×10
x10
up
☑
down
neither
in
out
Does the gas mixture do work, or is work done
on it?
neither
does work
work is done on it
neither
How much work is done on (or by) the gas
mixture? Round your answer to 3 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.) From previous experiments, this chemical reaction is known to release 166. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 123. kJ of heat flows into the system during the reaction. 1 atm pressure gases piston cylinder water bath Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? exothermic endothermic □×10 x10 up ☑ down neither in out Does the gas mixture do work, or is work done on it? neither does work work is done on it neither How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits. □kJ
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