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 1atm . The cylinder is also submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to absorb 138.kJ of energy. The temperature of the water bath is monitored, and it is determined from this data that 358.kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down or neither?the piston move in or out or neither? Does the gas mixture do work, or is work done on it or neither? How much work is done on (or by) the gas mixture?