ChromeFileEditViewHistory Bookmarks Profiles TabWindow HelpN Watch Gilmore* Dementia Frien x13 unread) - dte x T Lobby | Top Hat x2 ALEKSA ALEKS - Reyna >A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW_BBZZ16tTytly4Fcfu6zOtOf80MM9s7G0XWajIKntF38TIGBGKAppsSpotify Web Playe. M Common Ethical D.O THERMOCHEMISTRYUnderstanding the definitions of heat and workA mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. Thecylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. Thecylinder is also submerged in a large insulated water bath. (See sketch at right.)From previous experiments, this chemical reaction is known to release 133. kJ of energy.The position of the piston is monitored, and it is determined from this data that the piston does 116. kJ of work on thesystem during the reaction.O exothermicIs the reaction exothermic or endothermic?O endothermicO upDoes the temperature of the water bath go up ordown?O downO neitherO inDoes the piston move in or out?O outO neitherO inDoes heat flow into or out of the gas mixture?O outO neitherHow much heat flows? Re Cire vour anewer haen..ExplanationCheckO2022 McGraw Hill LLC. All Rights ReMAR14WMacBook Air80000000F1F2DIIF3F4F5F6F7FB@#2$%124789品i:II O THERMOCHEMISTRYUnderstanding the definitions of heat and workThe pos.... of the piston is monitored, and it is determined from this dasystem during the reaction.exothermicIs the reaction exothermic or endothermic?endothermicupDoes the temperature of the water bath go up ordown?downneitherinDoes the piston move in or out?outneitherO inDoes heat flow into or out of the gas mixture?outneitherHow much heat flows? Be sure your answer hasthe correct number of significant digits.ExplanationCheckMAR14O O

The sign convention for heat flow are as follows: When the heat flows into the system, a positive…

ixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The der has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The der is also submerged in a large insulated water bath. (See sketch at right.) n previous experiments, this chemical reaction is known to release 133. kJ of energy. position of the piston is monitored, and it is determined from this data that the piston does 116. kJ of work on the em during the reaction. O exothermic ne reaction exothermic or endothermic? endothermic up s the temperature of the water bath go up or n? down neither in s the piston move in or out? O out neither O in s heat flow into or out of the gas mixture? out neither umuch heat lowe2 Re eure vour anewer hae O.. planation Check 02022 McGraw Hill LLC. All Rights Re O O C

ixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The der has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The der is also submerged in a large insulated water bath. (See sketch at right.) n previous experiments, this chemical reaction is known to release 133. kJ of energy. position of the piston is monitored, and it is determined from this data that the piston does 116. kJ of work on the em during the reaction. O exothermic ne reaction exothermic or endothermic? endothermic up s the temperature of the water bath go up or n? down neither in s the piston move in or out? O out neither O in s heat flow into or out of the gas mixture? out neither umuch heat lowe2 Re eure vour anewer hae O.. planation Check 02022 McGraw Hill LLC. All Rights Re O O C

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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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

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Edit
View
History Bookmarks Profiles Tab
Window Help
N Watch Gilmore
* Dementia Frien x
13 unread) - dte x T Lobby | Top Hat x
2 ALEKS
A ALEKS - Reyna >
A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW_BBZZ16tTytly4Fcfu6zOtOf80MM9s7G0XWajIKntF38TIGBGK
Apps
Spotify Web Playe. M Common Ethical D.
O THERMOCHEMISTRY
Understanding the definitions of heat and work
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 133. kJ of energy.
The position of the piston is monitored, and it is determined from this data that the piston does 116. kJ of work on the
system during the reaction.
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 in
Does heat flow into or out of the gas mixture?
O out
O neither
How much heat flows? Re Cire vour anewer hae
n..
Explanation
Check
O2022 McGraw Hill LLC. All Rights Re
MAR
14
W
MacBook Air
80
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F2
DII
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F4
F5
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O THERMOCHEMISTRY
Understanding the definitions of heat and work
The pos.... of the piston is monitored, and it is determined from this da
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
O in
Does heat flow into or out of the gas mixture?
out
neither
How much heat flows? Be sure your answer has
the correct number of significant digits.
Explanation
Check
MAR
14
O O

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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 pist From previous experiments, this chemical reaction is known to absorb 278. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 285. kJ of heat flows into the system during the reaction. gases 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 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? Round your answer to 1 significant digit.