Question

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 . The cylinder is also submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the system does of work on the piston during the reaction.1) Does the temperature of the water bath go up or down?

2) Does the piston move in or out?
3) Does heat flow into or out of the gaseous mixture?
4) How much heat flows?

Answer 1

Answer: The temperature goes up.2.The piston doesn't move in and out.3.Heat flows out.4. Amount of heat evolved is +285 kj/mol

Step-by-step explanation:

The temperature in the water bath will rise because heat being evolved is absorbed it.Based on principle of constant pressure, the piston doesn't move in and out.Since the reaction is a combination reaction, heat will be evolved.