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Gitofa Shah
PHYSICS

Statistical Mechanics
What is the name of the statistical mechanical potential that describes a system at constant temperature and pressure?
A. Helmholtz free energy.
B. Gibbs free energy.
C. Landau free energy.
D. Grand potential.
Gitofa Shah
PHYSICS

Statistical Mechanics
A system undergoes a reversible adiabatic process. What is the change in entropy of the system?
A. ΔS = 0.
B. ΔS > 0.
C. ΔS.
D. ΔS = k * ln(V2 / V1).
Gitofa Shah
PHYSICS

Statistical Mechanics
What is the name of the theorem that relates the entropy of a system to the number of possible microstates?
A. Boltzmann's theorem.
B. Gibbs' theorem.
C. Shannon's theorem.
D. Onsager's theorem.
Gitofa Shah
PHYSICS

Statistical Mechanics
A system is in thermal equilibrium with a reservoir at temperature T. What is the probability of finding the system in a microstate with energy E?
A. 1 / Ω(T).
B. e^(−E/kT) / Z(T).
C. E / kT.
D. Ω(T) / E.
Gitofa Shah
PHYSICS

Statistical Mechanics
What is the name of the statistical ensemble that describes a system with a fixed number of particles, volume, and energy?
A. Microcanonical ensemble.
B. Canonical ensemble.
C. Grand canonical ensemble.
D. Isothermalisobaric ensemble.
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