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 1 atm pressure piston cylinder large insulated water bath. (See sketch at right.) water bath From previous experiments, this chemical reaction is known to release 252. kJ of energy. gases The temperature of the water bath is monitored, and it is determined from this data that 311. kJ of heat flows out of 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 does work Does the gas mixture do work, or is work done on it? work is done on it 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
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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
1 atm pressure
piston
cylinder
large insulated water bath. (See sketch at right.)
water bath
From previous experiments, this chemical reaction is known to release 252. kJ of energy.
gases
The temperature of the water bath is monitored, and it is determined from this data that
311. kJ of heat flows out of 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
does work
Does the gas mixture do work, or is work done
on it?
work is done on it
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 cylinder is also submerged in a 1 atm pressure piston cylinder large insulated water bath. (See sketch at right.) water bath From previous experiments, this chemical reaction is known to release 252. kJ of energy. gases The temperature of the water bath is monitored, and it is determined from this data that 311. kJ of heat flows out of 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 does work Does the gas mixture do work, or is work done on it? work is done on it 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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