Physics 5 Marks Questions

What is called degree of freedom? How many types are there? Explain to them.

Write which two modifications van der Walls made in the equation of state, explain these by defining critical temperature critical pressure and critical volume and obtain their values.

How does the behaviour of a real gas differ from the behaviour of an ideal gas? Under what conditions does a real gas behave like an ideal gas?

On the basis of molecular kinetic theory of gases, derive the laws of Boyle, Charles, pressure law or Gay-Lussac, Graham's diffusion, Dalton's partial pressure, Avogadro's laws for any gas.

What is the ideal gas equation? Derive the equation of state for an ideal gas from the molecular kinetic theory of gases.

Prove that the root mean square velocity of a molecule is absolute, is directly proportional to the square root of temperature and the mean kinetic energy is directly proportional to absolute temperature.

Establish an expression for the mean kinetic energy of molecules. Under what circumstances can this be known?

Define root mean square velocity. How is the temperature of an ideal gas explained by the kinetic theory of gases?

On the basis of molecular kinetic theory derive an expression for the pressure exerted on the walls of a vessel by a gas filled in it.

What is the kinetic theory of gases? Explain the hypothesis of this theory and point out its limitations.

Describe the behavior of gases.

Explain the molecular nature of matter. What are the factors affecting Brownian motion? Describe them.