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 124. kJ of water bath energy. gases alo The temperature of the water bath is monitored, and it is determined from this data that 354. kJ of heat flows into the system during the reaction. Ar |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 & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter10: Gases And Their Properties
Section: Chapter Questions
Problem 105IL: You have a gas, one of the three known phosphorus-fluorine compounds (PF3, PF3, and P2F4). To find...
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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 release 124. kJ of
water bath
energy.
gases
dlo
The temperature of the water bath is monitored, and it is determined from this
data that 354. kJ of heat flows into the system during the reaction.
Ar
|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 large insulated water bath. (See sketch at right.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 124. kJ of water bath energy. gases dlo The temperature of the water bath is monitored, and it is determined from this data that 354. kJ of heat flows into the system during the reaction. Ar |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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