Molecular Physics | Thermodynamics

When i cycled from home at a speed at 36km/h i reached the station 4mins after the train left.if i had cycled at 45km/h i would reach to the station 4min before the train left.how far is the station

Molecular Physics | Thermodynamics

A steel railroad track has a length of 21 m
when the temperature is 2◦C.
What is the increase in the length of the
rail on a hot day when the temperature is
40 ◦C? The linear expansion coefficient of
steel is 11 × 10−6
(
◦C)−1
.
Answer in units of m.

Molecular Physics | Thermodynamics

Find the total translational kinetic energy of
3 L of oxygen gas held at a temperature of
−3C◦ and a pressure of 2 atm.
Answer in units of J.

Molecular Physics | Thermodynamics

A 200.0 ml of a gas is collected at 20.0 0C and 733.5mm of Hg. The mass of the sample is 0.934g. What is its Molar mass?

Molecular Physics | Thermodynamics

4 molecules are to be distributed in 2 cells . Find possible number of macrostates and corresponding no.of microstates.

Molecular Physics | Thermodynamics

Give the assumptions of Debye model. Hence calculate (gammaD)^3 where gamma is Debye cut -off frequency.

Molecular Physics | Thermodynamics

What are classical limits? Explain how quantum distribution laws are reduced to classical Maxwell-Boltzmann distribution?

Molecular Physics | Thermodynamics

Obtain an expression for vibrational specific heat of constant volume for a diatomic volume.

Molecular Physics | Thermodynamics

A simple harmonic one dimensional oscillator has energy level is given by En=(n+{1÷2}h cross omega.where omega is angular frequency and h=0,1,2,3,.... .Suppose that this oscillator is in thermal contact with a heat reservior at tempararature T low enough so that kT<<hcross omega.Find the ratio of probability of oscillator being in first excited state to the probability of its being in the ground state.

Molecular Physics | Thermodynamics

The equation of motion of classical harmonic oscillator is expressed by x=asin(omega)t.Show that probability of finding the particle between x and x+dx is given by,
P(x) dx=(dx)÷ (π√[d^2-x^2])