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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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 135. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 242. kJ of work on the piston during the reaction. gases do O exothermic O endothermic Is the reaction exothermic or 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? Be sure your answer has the correct number of significant digits. II

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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 135. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 242. kJ of work on the piston during the reaction. gases do O exothermic O endothermic Is the reaction exothermic or 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? Be sure your answer has the correct number of significant digits. II

Chemistry
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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please answer everything. be sure your answer is correct and have the correct number of significant digits
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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 135. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 242. kJ of work on the piston during the reaction. gases do O exothermic O endothermic Is the reaction exothermic or 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? Be sure your answer has the correct number of significant digits. II
Transcribed Image Text: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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to release 135. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 242. kJ of work on the piston during the reaction. gases do O exothermic O endothermic Is the reaction exothermic or 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? Be sure your answer has the correct number of significant digits. II
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