Thermodynamics And Statistical Physics - Study Mode
[#51] A system of N non-interacting classical point particles constrained to move on the two-dimensional surface of a sphere. The internal energy of the system is
Correct Answer
(C) Nk B T
[#52] The dimension of phase space of ten rigid diatomic molecules is
Correct Answer
(D) 100
[#53] The wavefunctions of two identical particles in stated n and s are given by $${phi _n}left( {{r_1}}
ight)$$ xa0and $${phi _s}left( {{r_2}}
ight)$$ , respectively. The particles obey Maxwell-Boltzmann statistics. The state of the combined two particles system is expressed as
Correct Answer
(D) $${phi _n}left( {{r_1}}
ight){phi _s}left( {{r_2}}
ight)$$
[#54] The vapour pressure p (in mm of Hg) of a solid, at temperature T, is expressed by In p = 23 - 3863/T and that of its liquid phase by In p = 19 - 3063/T. The triple point (in kelvin) of the material is
Correct Answer
(D) 200
[#55] The probability that an energy level E at a temperature T is unoccupied by a fermion of chemical potential μ is given by
Correct Answer
(C) $$frac{1}{{{e^{left( {mu - varepsilon }
ight){k_B}T}} + 1}}$$