A 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 pressurepistoncylinderFrom previous experiments, this chemical reaction is known to release 126. kJ of energy.water bathgasesThe position of the piston is monitored, and it is determined from this data that the system does 118. kJ of work on thepiston during the reaction.exothermicIs the reaction exothermic or endothermic?x10endothermicupDoes the temperature of the water bath go up ordown?downneitherinDoes the piston move in or out?outneitherinDoes heat flow into or out of the gas mixture?outneitherHow much heat flows? Be sure your answer hasthe correct number of significant digits.|kJ

If the energy is absorbed in any reaction, the reaction is endothermic in nature i.e. heat is…

of gaseous reactants is put into a cylinder, where a reaction 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 126. kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 118. kJ of work on the piston 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

of gaseous reactants is put into a cylinder, where a reaction 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 126. kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 118. kJ of work on the piston 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

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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DOMINGO Understanding the definitions of heat and work O 0/5 A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them 1 atm pressure piston cylinder water bath gases do 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.) The temperature of the water bath is monitored, and it is determined from this data that 290. 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 315. kJ of work on the piston 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 absorb Does the reaction absorb or release energy? O release O…
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