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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to absorb 397. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 212. kJ of work on the gases piston during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O in Does heat flow into or out of the gas mixture? O out O neither How much heat flows? Be sure your answer has the correct number of 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.) 1 atm pressure piston cylinder From previous experiments, this chemical reaction is known to absorb 397. kJ of energy. water bath The position of the piston is monitored, and it is determined from this data that the system does 212. kJ of work on the gases piston during the reaction. O exothermic Is the reaction exothermic or endothermic? O endothermic O up Does the temperature of the water bath go up or down? O down O neither O in Does the piston move in or out? O out O neither O in Does heat flow into or out of the gas mixture? O out O neither How much heat flows? Be sure your answer has the correct number of significant digits.

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

Chapter10: Solids, Liquids, And Phase Transitions

Section: Chapter Questions

Problem 56AP

See similar textbooks

Similar questions

A syringe at a temperature of 20 C is filled with liquid ether in such a way that there is no space for any vapor. If the temperature is kept constant and the plunger is withdrawn to create a volume that can be occupied by vapor, what would be the approximate pressure of the vapor produced?
ook at Fig. 14.2. Why doesn't temperature increase continuously ever time? That is, why does the temperature stay constanl for periods of time?
Of helium and oxygen gases, which one do you expect to have a larger deviation from ideality at the same high pressure? Is this the same gas that you would expect to have a larger deviation from ideality at moderate pressure? How about at very low pressure?
Gases that cannot be liquefied at room temperature merely by compression are called permanent gases. How could you liquefy such a gas?
The root mean square speed of H2, molecules at 25 C is about 1.6 km/s. What is the root mean square speed of a N2, molecule at 25 C?
What are the two ways in which the escape of high-energy molecules from the surface of a liquid during the process of evaporation affects the liquid?
Satellites in space often suffer from vacuum welding, in which two metal parts in contact tend to stick together more than expected over a period of time. Why does this phenomenon occur in space and not on Earth?