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 absorb 359. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 298. kJ of heat flows out of the system during the reaction. gases alo 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 does work Does the gas mixture do work, or is work done on it? O 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. Ok

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 absorb 359. kJ of energy. water bath The temperature of the water bath is monitored, and it is determined from this data that 298. kJ of heat flows out of the system during the reaction. gases alo 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 does work Does the gas mixture do work, or is work done on it? O 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. Ok

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter13: Gases

Section: Chapter Questions

Problem 4STP

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