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 absorb 283. kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 132. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? O endothermic up Does the temperature of the water bath go up or down? down neither in O out Does the piston move in or out? O neither O in O out Does heat flow into or out of the gas mixture? O neither How much heat flows? Round your answer to 3 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.) From previous experiments, this chemical reaction is known to absorb 283. kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 132. kJ of work on the piston during the reaction. exothermic Is the reaction exothermic or endothermic? O endothermic up Does the temperature of the water bath go up or down? down neither in O out Does the piston move in or out? O neither O in O out Does heat flow into or out of the gas mixture? O neither How much heat flows? Round your answer to 3 significant digits.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.105QE

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