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Gitofa Shah
PHYSICS
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Thermodynamics
What is the name of the thermodynamic potential that describes a system at constant pressure and temperature?
A. Helmholtz free energy.
B. Gibbs free energy.
C. Landau free energy.
D. Enthalpy.
Gitofa Shah
PHYSICS
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Thermodynamics
A gas is compressed adiabatically from pressure P1 to P2. What is the change in temperature of the gas?
A. T2 = T1 * (P2 / P1)^(γ - 1).
B. T2 = T1 * (P2 / P1)^(1 / γ).
C. T2 = T1 * (P1 / P2)^(γ - 1).
D. T2 = T1 * (P1 / P2)^(1 / γ).
Gitofa Shah
PHYSICS
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Thermodynamics
What is the name of the process by which a system transitions from a metastable state to a stable state with a decrease in free energy?
A. Melting.
B. Boiling.
C. Condensation.
D. Nucleation.
Gitofa Shah
PHYSICS
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Thermodynamics
A system undergoes a reversible isothermal expansion from volume V1 to V2. What is the change in internal energy of the system?
A. ΔU = 0.
B. ΔU = Q.
C. ΔU = W.
D. ΔU = -W.
Gitofa Shah
PHYSICS
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Thermodynamics
A heat engine operates between two reservoirs at temperatures T1 and T2, with T1 > T2. What is the maximum efficiency of the engine?
A. 1 - (T2 / T1).
B. 1 - (T1 / T2).
C. T1 / T2.
D. T2 / T1.
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