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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 constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to absorb 379 kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 395 kJ of work on the piston during the reaction.
a. Is this reaction endothermic or exothermic?
b. Does the temperature of the water bath go up or down?
c. Does the piston move in or out?
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A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...
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