O THERMOCHEMISTRY3/5Understanding 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.)1 atm pressurepistoncylinderThe temperature of the water bath is monitored, and it is determined from this data that 344. kJ of heat flows out of thewater bathsystem during the reaction. The position of the piston is also monitored, and it is determined from this data that thesystem does 271. kJ of work on the piston during the reaction.gasesO 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 absorbDoes the reaction absorb or release energy?O releaseO neitherHow much energy does the reaction absorb orrelease? Be sure your answer has the correctnumber of significant digits.II

Heat flows out of the system during the reaction = 344 kJ System does 271. kJ of work on the piston…

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 The temperature of the water bath is monitored, and it is determined from this data that 344. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 271. kJ of work on the piston during the reaction. water bath 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 O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O neither How much energy does the reaction absorb or release? Be sure your answer has the correct number of significant digits.

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 The temperature of the water bath is monitored, and it is determined from this data that 344. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does 271. kJ of work on the piston during the reaction. water bath 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 O in Does the piston move in or out? O out O neither O absorb Does the reaction absorb or release energy? O release O neither How much energy does the reaction absorb or release? 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

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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