15.) Which of the following systems has the greatest change in internal energy? A.) A mixing of two ideal diatomic gases with equimolar amount and the same temperature and pressure. B.) An isolated container that contains two gases of different pressures separated by a frictionless and movable piston. The gases are allowed to reach a mechanical equilibrium. C.) Two blocks of similar metal that are in contact in an isolated container, one block metal has a temperature of 100°C while the other block of metal has a temperature of 20°C. The two blocks of metals are allowed to reach thermal equilibrium. D.) An ideal gas that was allowed to expand freely and adiabatically. E.) None of these.
15.) Which of the following systems has the greatest change in internal energy? A.) A mixing of two ideal diatomic gases with equimolar amount and the same temperature and pressure. B.) An isolated container that contains two gases of different pressures separated by a frictionless and movable piston. The gases are allowed to reach a mechanical equilibrium. C.) Two blocks of similar metal that are in contact in an isolated container, one block metal has a temperature of 100°C while the other block of metal has a temperature of 20°C. The two blocks of metals are allowed to reach thermal equilibrium. D.) An ideal gas that was allowed to expand freely and adiabatically. E.) None of these.
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 13P
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Transcribed Image Text:15.) Which of the following systems has the greatest change in internal energy?
A.) A mixing of two ideal diatomic gases with equimolar amount and the same temperature and
pressure.
B.) An isolated container that contains two gases of different pressures separated by a frictionless
and movable piston. The gases are allowed to reach a mechanical equilibrium.
C.) Two blocks of similar metal that are in contact in an isolated container, one block metal has a
temperature of 100°C while the other block of metal has a temperature of 20°C. The two blocks of
metals are allowed to reach thermal equilibrium.
D.) An ideal gas that was allowed to expand freely and adiabatically.
E.) None of these.
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