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 release 196. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 234. kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? exothermic endothermic 10 up X Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work work is done on it Does the gas mixture do work, or is work done on it? neither. How much work is done on (or by) the gas mixture? Round your answer to 2 significant igits. KJ 1 atm pressure gases ? pist

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 release 196. kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 234. kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? exothermic endothermic 10 up X Does the temperature of the water bath go up or down? down neither in Does the piston move in or out? out neither does work work is done on it Does the gas mixture do work, or is work done on it? neither. How much work is done on (or by) the gas mixture? Round your answer to 2 significant igits. KJ 1 atm pressure gases ? pist

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter12: Thermodynamic Processes And Thermochemistry

Section: Chapter Questions

Problem 4P

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