1. N identical particles of mass m is confined to move only about a surface of...
1. N identical particles of mass m is confined to move only about a surface of area A, and thus can be considered as a “two-dimensional gas.” In the classical limit what is the single particle partition function of one of the particles in this ideal two-dimensional gas? What is the partition function of the N particle gas? What is the mean thermal energy of this gas, and what is the entropy of this gas?
Homework Answers
Single-particle partition function is
.
For N particle partition function is
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1. N identical particles of mass m is confined to move only
about a surface of...
An ideal gas enclosed in a volume V is composed of N identical particles in equilibrium...
An ideal gas enclosed in a volume V is composed of N identical particles in equilibrium at temperature T. (a) Write down the N-particle classical partition function Z in terms of the single-particle partition function ζ, and show that Z it can be written as ln(Z)=N(ln (V/N) + 3/2ln(T)+σ (1) where σ does not depend on either N, T or V . (b) From Equation 1 derive the mean energy E, the equation of state of the ideal gas and...
3. Consider an ideal gas of N particles, each of mass M, confined to a one- dimensional line of l...
3. Consider an ideal gas of N particles, each of mass M, confined to a one- dimensional line of length a. Find the entropy at temperature T
3. Consider an ideal gas of N particles, each of mass M, confined to a one- dimensional line of length a. Find the entropy at temperature T
Pb2. Consider the case of a canonical ensemble of N gas particles confined to a t...
Pb2. Consider the case of a canonical ensemble of N gas particles confined to a t rectangular parallelepiped of lengths: a, b, and c. The energy, which is the translational kinetic energy, is given by: o a where h is the Planck's constant, m the mass of the particle, and nx, ny ,nz are integer numbers running from 1 to +oo, (a) Calculate the canonical partition function, qi, for one particle by considering an integral approach for the calculation of...
1 The Gibbs Paradox Consider N particles, each of mass m, in a 3-dimensional volume V at temperature T. Each particle i...
1 The Gibbs Paradox Consider N particles, each of mass m, in a 3-dimensional volume V at temperature T. Each particle i has momentum pi. Assume that the particles are non-interacting (ideal gas) and distinguishable. a) (2P) Calculate the canonical partition function N P for the N-particle system. Make sure to work out the integral. b) (2P) Calculate the free energy F--kBTlnZ from the partition function Z. Is F an extensive quantity? c) (2P) Calculate the entropy S F/oT from...
Answer a total of any THREE out of the four questions. Put the solution to each problem in a separate blue book and put the number of the problem and your name on the front of each book. If you su...
Answer a total of any THREE out of the four questions. Put the solution to each problem in a separate blue book and put the number of the problem and your name on the front of each book. If you submit solutions to more than three problems, only the first three problems as listed on the exam will be graded. Some possibly useful information: Sterling's asymptotic series: N In N-N + 1 ln(2nN] In N! N → oo, as 2...
Problem 3: (40 points) One-dimensional relativistic gas: Here we consider a non-interacting gas of N relativistic...
Problem 3: (40 points) One-dimensional relativistic gas: Here we consider a non-interacting gas of N relativistic particles in one dimension. The gas is confined in a container of length L, i.e., the coordinate of each particle is limited to 0 <q < L. The energy of the ith particle is given by ε = c (a) Calculate the single particle partition function Z(T,L) for given energy E and particle number N. [12 points] (b) Calculate the average energy E and...
3. It can be shown that the canonical partition function of an N-particle monatomic ideal gas con...
Please be specific about the solution and thank you so much!
3. It can be shown that the canonical partition function of an N-particle monatomic ideal gas confined to a container of volume V at temperature T is given by 3 Use this partition function to derive an expression for the average energy and the constant- volume heat capacity of the monatomic ideal gas. Note that in classical thermodynamics these quantities were simply given. Your calculations show that these quantities...
Q.7) Consider a systems of N>>1 identical, distinguishable and independent particles that can be placed in...
Q.7) Consider a systems of N>>1 identical, distinguishable and independent particles that can be placed in three energy levels of energies 0, E and 2€, respectively. Only the level of energy sis degenerate, of degeneracy g=2. This system is in equilibrium with a heat reservoir at temperature T. a) Obtain the partition function of the system. b) What is the probability of finding each particle in each energy level? c) Calculate the average energy <B>, the specific heat at constant...
3. Consider a hypothetical non-ideal gas of particles confined to exist along a line in one dimension. The particles are in thermal equilibrium but due to their complex interactions the velocity...
3. Consider a hypothetical non-ideal gas of particles confined to exist along a line in one dimension. The particles are in thermal equilibrium but due to their complex interactions the velocity distribution function is not Maxwellian, but rather has the form: where C and vo are constants. Note that v is the velocity (not the speed) and can take on negative values. Express your answers below in terms of vo- a. Solve for the constant C b. Draw a sketch...
(80 pts) Entropy of the ideal gas: Consider a monatomic gas of identical non-interacting particles of...
(80 pts) Entropy of the ideal gas: Consider a monatomic gas of identical non-interacting particles of mass m. The kinetic energy of each particle is given in terms of its momentum p by Ekinp2/(2m). For a given total energy U, volume V and total particle number N (with N » 1) calculate the entropy S(U, V,N)-klog Ω(U, V,N), where Ω(U, V,N) counts the number of different microscopic configurations for given N, U and V. To get a finite number for...
3. Consider an ideal gas of N particles, each of mass M, confined to a one- dimensional line of length a. Find the entropy at temperature T
3. Consider an ideal gas of N particles, each of mass M, confined to a one- dimensional line of length a. Find the entropy at temperature T
Pb2. Consider the case of a canonical ensemble of N gas particles confined to a t rectangular parallelepiped of lengths: a, b, and c. The energy, which is the translational kinetic energy, is given by: o a where h is the Planck's constant, m the mass of the particle, and nx, ny ,nz are integer numbers running from 1 to +oo, (a) Calculate the canonical partition function, qi, for one particle by considering an integral approach for the calculation of...
1 The Gibbs Paradox Consider N particles, each of mass m, in a 3-dimensional volume V at temperature T. Each particle i has momentum pi. Assume that the particles are non-interacting (ideal gas) and distinguishable. a) (2P) Calculate the canonical partition function N P for the N-particle system. Make sure to work out the integral. b) (2P) Calculate the free energy F--kBTlnZ from the partition function Z. Is F an extensive quantity? c) (2P) Calculate the entropy S F/oT from...
Answer a total of any THREE out of the four questions. Put the solution to each problem in a separate blue book and put the number of the problem and your name on the front of each book. If you submit solutions to more than three problems, only the first three problems as listed on the exam will be graded. Some possibly useful information: Sterling's asymptotic series: N In N-N + 1 ln(2nN] In N! N → oo, as 2...
Problem 3: (40 points) One-dimensional relativistic gas: Here we consider a non-interacting gas of N relativistic particles in one dimension. The gas is confined in a container of length L, i.e., the coordinate of each particle is limited to 0 <q < L. The energy of the ith particle is given by ε = c (a) Calculate the single particle partition function Z(T,L) for given energy E and particle number N. [12 points] (b) Calculate the average energy E and...
Please be specific about the solution and thank you so much!
3. It can be shown that the canonical partition function of an N-particle monatomic ideal gas confined to a container of volume V at temperature T is given by 3 Use this partition function to derive an expression for the average energy and the constant- volume heat capacity of the monatomic ideal gas. Note that in classical thermodynamics these quantities were simply given. Your calculations show that these quantities...
Q.7) Consider a systems of N>>1 identical, distinguishable and independent particles that can be placed in three energy levels of energies 0, E and 2€, respectively. Only the level of energy sis degenerate, of degeneracy g=2. This system is in equilibrium with a heat reservoir at temperature T. a) Obtain the partition function of the system. b) What is the probability of finding each particle in each energy level? c) Calculate the average energy <B>, the specific heat at constant...
3. Consider a hypothetical non-ideal gas of particles confined to exist along a line in one dimension. The particles are in thermal equilibrium but due to their complex interactions the velocity distribution function is not Maxwellian, but rather has the form: where C and vo are constants. Note that v is the velocity (not the speed) and can take on negative values. Express your answers below in terms of vo- a. Solve for the constant C b. Draw a sketch...
(80 pts) Entropy of the ideal gas: Consider a monatomic gas of identical non-interacting particles of mass m. The kinetic energy of each particle is given in terms of its momentum p by Ekinp2/(2m). For a given total energy U, volume V and total particle number N (with N » 1) calculate the entropy S(U, V,N)-klog Ω(U, V,N), where Ω(U, V,N) counts the number of different microscopic configurations for given N, U and V. To get a finite number for...
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